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An annotated avian inventory of the Brazilian state of Alagoas, one of the world’s most threatened avifauna

Abstract

The northeast Brazilian state of Alagoas harbors a rather diverse, and one of the world’s most threatened, avifauna. However, the knowledge about its avifauna is currently scattered on several publications and the state’s birds have never been comprehensively assembled into a checklist. To fill this shortfall, we present here the first critical review of all available bird records for the state of Alagoas. We present a list of 520 bird species recorded in the state, of which 503 are supported by documentary evidence. We also comment on the distribution, migratory movements, taxonomy and conservation of the region’s avifauna and correct previous misidentified or invalid records for the state.

Keywords.
Aves; Endangered; Extinction; Murici; Pernambuco Center of Endemism

INTRODUCTION

Located in a biogeographically privileged part of northeastern Brazil, the state of Alagoas harbors a rather diverse avifauna. It encompasses a portion of the Atlantic Forest remarkable for its high degree of endemicity, the so-called Pernambuco Center of Endemism (PCE). This center of endemism - supported by distributional patterns from a varied array of organisms including birds, reptiles, amphibians, invertebrates and plants - comprises the strip of Atlantic Forest north of the São Francisco River (Brown, 1982Brown, K.S. 1982. Historical and ecological factors in the biogeography of aposematic Neotropical butterflies. American Zoologist, 22(2): 453-471. https://doi.org/10.1093/icb/22.2.453.
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; Prance, 1982Prance, G.T. 1982. Forest refuges: evidence from woody angiosperms. In: Prance, G.T. Biological diversification in the tropics. New York, Columbia University Press. p. 137-158.; Silva et al., 2004Silva, J.M.C.; Sousa, M.C. & Castelletti, C.H.M. 2004. Areas of endemism for passerine birds in the Atlantic Forest, South America. Global Ecology and Biogeography, 13: 85-92. https://doi.org/10.1111/j.1466-882X.2004.00077.x.
https://doi.org/10.1111/j.1466-882X.2004...
; DaSilva et al., 2015DaSilva, M.B.; Pinto da Rocha, R. & DeSouza, A.M. 2015. A protocol for the delimitation of areas of endemism and the historical regionalization of the Brazilian Atlantic Rain Forest using harvestmen distribution data. Cladistics, 31(6): 692-705. https://doi.org/10.1111/cla.12121.
https://doi.org/10.1111/cla.12121...
; França et al., 2020França, R.C.; Morais, M.; França, F.G.; Rödder, D. & Solé, M. 2020. Snakes of the Pernambuco Endemism Center, Brazil: diversity, natural history and conservation. ZooKeys, 1002: 115-158. https://doi.org/10.3897/zookeys.1002.50997.
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; Peres et al., 2020Peres, E.A.; Pinto-da-Rocha, R.; Lohmann, L.G.; Michelangeli, F.A.; Miyaki, C.Y. & Carnaval, A.C. 2020. Patterns of species and lineage diversity in the Atlantic rainforest of Brazil. In: Rull, V. & Carnaval, A.C. Neotropical diversification: patterns and processes. Cham, Springer. p. 415-447. https://doi.org/10.1007/978-3-030-31167-4_16.
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) and has one of the world’s most threatened avifauna (Teixeira, 1986Teixeira, D.M. 1986. The avifauna of northeastern Brazilian Atlantic Forests: a case of mass extinction? Ibis, 128(1): 167-168.; Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Brooks & Balmford, 1996Brooks, T. & Balmford, A. 1996. Atlantic forest extinctions. Nature, 380(6570): 115. https://doi.org/10.1038/380115a0.
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; Lees & Pimm, 2015Lees, A.C. & Pimm S.L. 2015. Species, extinct before we know them? Current Biology, 25(5): R177-R180. https://doi.org/10.1016/j.cub.2014.12.017.
https://doi.org/10.1016/j.cub.2014.12.01...
). The interior of the state, in contrast to the coast’s rainforest, forms part of the Caatinga, the largest continuous area of the seasonally dry tropical forest biome, which harbors several birds found nowhere else (Lima, 2021Lima, R.D. 2021. Birds of the Caatinga revisited: the problem of enclaves within, but not of, the Caatinga. Journal of Arid Environments, 191: 104537. https://doi.org/10.1016/j.jaridenv.2021.104537.
https://doi.org/10.1016/j.jaridenv.2021....
). In addition, the state is bordered by the Atlantic Ocean to the east, where it is rich in seabirds (Olmos, 2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.; Sousa et al., 2005Sousa, M.C.; Fraga, R.T. & Carlos, C.J. 2005. Seabird records from Alagoas and Sergipe states, north-east Brazil. Cotinga, 24: 112-114.; Ramos et al., 2017Ramos, R.; Carlile, N.; Madeiros, J.; Ramírez, I.; Paiva, V.H.; Dinis, H.A.; Zino, F.; Biscoito, M.; Leal, G.R.; Bugoni, L.; Jodice, P.G.R.; Ryan, P.G. & González Solís, J. 2017. It is the time for oceanic seabirds: Tracking year round distribution of gadfly petrels across the Atlantic Ocean. Diversity and Distributions, 23(7): 794-805. https://doi.org/10.1111/ddi.12569.
https://doi.org/10.1111/ddi.12569...
; Almeida et al., 2019Almeida, B.J.M.; Moreira, A.L.; Borges, J.C.G.; Batista, R.L.G.; Parente, J.E.V. & Reis, E.C. 2019. Aves marinhas e costeiras da bacia de Sergipe-Alagoas. In: Reis, E.C. & Carneiro M.E.R. Quelônios, aves e mamíferos da bacia Sergipe-Alagoas. São Cristóvão, Editora da Universidade Federal de Sergipe. p. 70-115.) (Fig. 1).

Figure 1
(A) Location of the state of Alagoas highlighted within Brazil. (B) Location of the Pernambuco Center of Endemism (PCE), comprising the Atlantic Forest north of the Sao Francisco River (blue line). The Caatinga is depicted in yellow, the Atlantic Forest in green, and savannas are in orange, adapted from Olson et al. (2001Olson, D.M.; Dinerstein, E.; Wikramanayake, E.D.; Burgess, N.D.; Powell, G.V.; Underwood, E.C.; D’amico, J.A.; Strand, H.E.; Morrison, J.C.; Loucks, C.J.; Allnutt, T.F.; Ricketts, T.H.; Kura, Y.; Lamoreux, J.F.; Wettengel, W.W.; Hedao, P. & Kassem, K.R. 2001. Terrestrial ecoregions of the World: a new map of life on Earth. Bio Science, 51(11): 933-938. https://doi.org/10.1641/0006-3568(2001)051[0933:TEOTWA]2.0.CO;2.
https://doi.org/https://doi.org/10.1641/...
), Sagot-Martin et al. (2020Sagot-Martin, F.; Lima, R.D.; Pacheco, J.F.; Irusta, J.B.; Pichorim, M. & Hassett, D.M. 2020. An updated checklist of the birds of Rio Grande do Norte, Brazil, with comments on new, rare, and unconfirmed species. Bulletin of the British Ornithologists’ Club, 140(3): 218-298. https://doi.org/10.25226/bboc.v140i3.2020.a2.
https://doi.org/10.25226/bboc.v140i3.202...
) and Lima (2021Lima, R.D. 2021. Birds of the Caatinga revisited: the problem of enclaves within, but not of, the Caatinga. Journal of Arid Environments, 191: 104537. https://doi.org/10.1016/j.jaridenv.2021.104537.
https://doi.org/10.1016/j.jaridenv.2021....
). (C) Main sites within the state mentioned throughout the text (numbers as in Table 1).

Table 1
Localities in Alagoas mentioned in the text.

The first available information on the state’s avifauna was gathered when the German naturalist Georg Marcgrave came to study the region’s fauna and flora in the then Dutch-controlled northeastern Brazil (Marcgrave, 1648Marcgrave, G. 1648. Historia Naturalis Brasiliae. Amsterdam, Lungdunum Batavorum.; reviewed by Schneider, 1938Schneider, A. 1938. Die Vogelbilder zur Historia Naturalis Brasiliae des Georg Macgrave. Journal für Ornitologie, 86: 74-106.; Pinto, 1946Pinto, O.M.O.. 1946. Comentários sôbre as Aves descritas na Historia Naturalis Brasiliae de Jorge Marcgrave. São Paulo, Departamento de Zoologia da Secretaria da Agricultura, Indústria e Comércio de São Paulo.; Teixeira, 1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149., 2009Teixeira, D.M. 2009. Os quadros de aves tropicais do Castelo de Hoflössnitz na Saxônia e Albert Eckhout (ca. 1610-1666), artista do Brasil Holandês. Revista do Instituto de Estudos Brasileiros, 49: 67-141. https://doi.org/10.11606/issn.2316-901X.v0i49p67-90.
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). After the publication of Marcgrave’s Historia Naturalis Brasiliae, the state went through almost three centuries without any new information regarding its avifauna. The British naturalist William Swainson crossed the state in 1817 on a journey across northeastern Brazil (Swainson, 1819Swainson, W. 1819. Sketch of a Journey through Brazil in 1817 and 1818. Edinburg Philosophical Journal, 1: 369-373.), but he left neither information on his route nor precise localities for the 760 bird specimens he collected in the region (Pacheco, 2004Pacheco, J.F. 2004. As aves da Caatinga: uma análise histórica do conhecimento. In: Silva, J.M.C.; Tabarelli, M.; Fonseca, M.T. & Lins, L.V. Biodiversidade da Caatinga: áreas e ações prioritárias para a conservação. Brasília, Ministério do Meio Ambiente. p. 189-250.). Later, a group of scientists from the Museum of Comparative Zoology (MCZ), in an expedition to study Brazil’s fauna and flora, spent one day (30 July 1865) in Alagoas (Agassiz, 1868Agassiz, L. 1868. A journey in Brazil. Boston, Ticknor and Fields.; Dick, 1977Dick, M.M. 1977. Stations of the Thayer Expedition to Brazil 1865-1866. Breviora, 444: 1-37.). Unfortunately, the bird specimens they collected seem to have been mixed with specimens from the state of Bahia and then mislabeled (see the account of Pyrrhura cruentata in Appendix 2 APPENDIX 2 Tertiary list - species for which there are published records for the state, but whose evidence is either questionable or invalid. Crypturellus variegatus One tinamou collected in Igarassu, Pernambuco, on 25 July 1996 (UFPE 1122) was identified as being Crypturellus variegatus and then the putative occurrence of this species in the PCE, based on this record, probably set a precedent for subsequent misidentified records of C. variegatus in Alagoas (Roda, 2003). We have checked the abovementioned specimen and it proved to be a C. soui (photos available upon request). We consider all records allegedly of C. variegatus in the PCE (Roda, 2003), probably aural encounters, to be misidentifications of C. strigulosus. Chionomesa lactea, Aramides saracura and Psittacara leucophthalmus These species were listed for the state in an obscure paper (Silva et al., 2015). The concerned paper contains so many errors that it is difficult to take it seriously and the records allegedly of these species are obvious confusions with similar species, namely Chionomesa fimbriata, Aramides cajaneus and Diopsittaca nobilis. Amadonastur lacernulatus Alleged occurrence of this species in the PCE is due to a cascade of errors. Another white hawk that occurs in the PCE, the White-collared Kite Leptodon forbesi, was long believed to be an invalid species (see Dénes et al., 2011). It follows that L. forbesi was largely omitted from field guides and reference works (e.g.,Sick, 1997) and thus many ornithologists made misidentifications of white hawks in the PCE. Pinto & Camargo (1961) were the first to report the occurrence of A. lacernulatus in the PCE. They collected a specimen of L. forbesi in Alagoas and misidentified it as A. lacernulatus, an error discovered only decades later after reexamination of the specimen (Dénes et al., 2011). In the meantime, the alleged occurrence of A. lacernulatus in the PCE, based on Pinto and Camargo’s misidentified record, was widely disseminated in the ornithological literature (Pinto, 1978; Collar et al., 1992; Thiollay, 1994; Pacheco & Whitney, 1995; Sick, 1997; Ferguson-Lees & Christie, 2001) and some ornithologists who conducted field surveys in the PCE published a lot misidentified records allegedly of this species (Collar et al., 1992; Wege & Long, 1995; Pacheco & Whitney, 1995; Roda et al., 2003; Roda & Pereira, 2006; Almeida & Teixeira, 2010). Now, we know that L. forbesi is a valid species and relatively common in the PCE (Pereira et al., 2019a; Lima et al., 2020), and that all alleged records of A. lacernulatus in this region are likely misidentifications of either L. forbesi or Mantled Hawk Pseudastur polionotus. Piculus chrysochloros A record from the Murici Ecological Station identified as being of this species (Silveira et al., 2003a) is a confusion with P. flavigula. Occurrence in the state, however, is not unlikely, but in the Caatinga westwards. Pyrrhura cruentata and Dendroma rufa In 1865, a group of scientists from the Museum of Comparative Zoology (MCZ) embarked for Brazil in an expedition to study the country’s fauna and flora (Dick, 1977). Newton Dexter, a member of the expedition, collected bird specimens in the state of Bahia for two or three weeks, and after in Maceió, Alagoas, where he stayed only one day (Agassiz, 1868: chapter IV). Among the specimens from this expedition in the MCZ bird collection, twenty have “Maceió, Alagoas” and none has “Bahia” as the locality of collection on their labels. Two of these specimens, namely a Pyrrhura cruentata (MCZ 7251) and a Dendroma rufa (MCZ 7242), called our attention because Maceió is far from the known northern limits of these species in Brazil. Other noteworthy species, considering that they may have been collected in Maceió, include Odontophorus capueira and Chelidoptera tenebrosa. Unfortunately, we were not able to ascertain whether these specimens were really collected in Alagoas and we believe that the assignment of all of them to Alagoas instead of Bahia is probably due to clerical error. Pipra fasciicauda The species has been reported for Alagoas in some reference works (Ridgely & Tudor, 1994, 2009; Haffer, 1997; Snow, 2004) without any evidence regarding its alleged occurrence in the state. As already noted by Albano & Girão (2008) and Kirwan & Green (2012), the alleged occurrence of the Band-tailed Manakin in Alagoas lacks evidence to be credible and is likely erroneous. Myiornis auricularis A sound-recording from the Murici Ecological Station formerly identified as being of this species (XC 284000; J. Minns) was cited in an article (Ruiz-Esparza et al., 2018), constituting the only mention of Myiornis auricularis for the state. The animal in this sound-recording, however, is in fact a frog (Pristimantis ramagii; Marcos Dubeux pers. comm.). Conopias trivirgatus The species was mentioned in a bird list from Piaçabuçu without any details (Cabral et al., 2006). This record is likely a misidentification of the regionally common Social Flycatcher Myiozetetes similis. Hylophilus pectoralis Alleged record for this species in Alagoas (Pinto & Camargo, 1961) is a misidentification for Gray-eyed Greenlet H. amaurocephalus (Pacheco et al., 2011). Tachycineta leucorrhoa A single undocumented record in Alagoas (Silveira et al., 2003a) is likely a misidentification of White-winged Swallow Tachycineta albiventer. Although T. leucorrhoa is known to occur in extreme northeastern Brazil (Sagot-Martin et al., 2020), and thus its occurrence in the state would not be unexpected, the putative Alagoas record was near a large water reservoir, typical habitat of the regionally much commoner T. albiventer, which is absent in Silveira et al.’s (2003a) list. Sporophila ardesiaca Recent records in the state (e.g., WA 3870941; C. Almeida) are likely of cagebirds inappropriately released by the environmental police in the region, since the species is known to be traded on the local black market (Lopes & Freitas, 2017) and had never been recorded in the region. Sporophila caerulescens Recent records in the states of Alagoas (e.g., WA 4446358; A. Rodrigues) and Pernambuco (e.g., WA 2394408; C. Gussoni) are likely of cagebirds inappropriately released in the region, since the species is known to be traded on the local black market (Pagano et al., 2009; Licarião et al., 2013) and had never been recorded in the region. Sporophila maximiliani We were unable to trace any records from Alagoas. Therefore, we consider the putative occurrence of this species in the state mentioned by Sick (1997) to be speculative. See the species’ range based on documentary evidence in Ubaid et al. (2018). ), so that none can be assigned with certainty to Alagoas. The Brazilian zoologist Rodolpho von Ihering also collected in the state in 1933, as suggested by three bird skins from Santa Luzia do Norte deposited at the Field Museum of Natural History (FMNH), in Chicago. These likely constitute the oldest state records for Nyctidromus hirundinaceus (FMNH 111862), Netta erythrophthalma (FMNH 111863; Hellmayr & Conover, 1948aHellmayr, C.E. & Conover, B. 1948a. Catalogue of the birds of the Americas and the adjacent islands in Field Museum of Natural History. Chicago, Field Museum Press. v. 13, part I, number 2.) and Nothura boraquira (FMNH 111864). New information regarding the state’s avifauna appeared in the literature only when the former Department of Zoology of the Secretary of Agriculture (today the Museum of Zoology of the University of São Paulo; MZUSP) carried out two expeditions to collect birds in Alagoas in 1951 and 1952 (Pinto, 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334., 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.). This same institution carried out another two expeditions in 1957 and 1958 in the state in partnership with the Los Angeles County Museum (LACM). The hundreds of specimens collected in these two latter expeditions were deposited in both the MZUSP and LACM bird collections. Pinto & Camargo (1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.) reported on the specimens that were deposited at the MZUSP, but those that were deposited at the LACM have barely appeared in the literature (e.g.,Short & Parkes, 1979Short, L.L. & Parkes, K.C. 1979. The status of Agelaius forbesi Sclater. The Auk, 96(1): 179-183. https://doi.org/10.1093/auk/96.1.179.
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) and some noteworthy ones will be highlighted here for the first time (e.g., see the account of Synallaxis hypospodia). Specimens from these 1951-1958 expeditions yielded an unprecedented increase in the state’s bird list and revealed several new bird taxa endemic to the PCE (Pinto, 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334., 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.), starting a prolific period of ornithological surveying in the state. Between 1979 and 1988, the Brazilian ornithologist Dante Teixeira led several surveys in Alagoas, especially in areas near the municipality of Murici, which revealed four bird species new to science (Teixeira & Gonzaga, 1983aTeixeira, D.M. & Gonzaga, L.P. 1983a. Um novo Furnariidae do nordeste do Brasil: Philydor novaesi sp. nov. (Aves, Passeriformes). Boletim do Museu Paraense Emílio Goeldi, 124: 1-22., bTeixeira, D.M. & Gonzaga, L.P. 1983b. A new antwren from northeastern Brazil. Bulletin of the British Ornithologists’ Club, 103(4): 133-135., 1985Teixeira, D.M. & Gonzaga, L.P. 1985. Uma nova subespécie de Myrmotherula unicolor (Ménétries, 1835) (Passeriformes, Formicariidae) do nordeste do Brasil. Boletim do Museu Nacional, 310: 1-15.; Teixeira, 1987Teixeira, D.M. 1987. A new tyrannulet (Phylloscartes) from northeastern Brazil. Bulletin of the British Ornithologists’ Club, 107(1): 37-41.) and several range extensions (Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74., 1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79., 1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157., 1993Teixeira, D.M.; Otoch, R.; Luigi, G.; Raposo, M.A. & Almeida, A.C.C. 1993. Notes on some birds of northeastern Brazil (5). Bulletin of the British Ornithologists’ Club, 113(1): 48-52.). The region of Murici then attracted the attention of many ornithologists and birdwatchers that carried out field work in the region in the 1990s and early 2000s and produced several remarkable records (e.g., see the accounts of Hypoedaleus guttatus, Corythopis delalandi and Campylorhynchus turdinus).

In the meantime, also noteworthy is the long-term work of the ornithologist Anita Studer at the Pedra Talhada Biological Reserve, who has produced valuable information about the avifauna from this important site in the state (e.g.,Studer & Vielliard, 1988Studer, A. & Vielliard, J. 1988. Premières données étho-écologiques sur l’Ictéridé brésilien Curaeus forbesi (Sclater, 1886) (Aves, Passeriformes). Revue Suisse de Zoologie, 95(4): 1063-1077.; Studer, 2015Studer, A. 2015. Aves da Reserva Biológica de Pedra Talhada. In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 377-405.; Studer et al., 2018Studer, A.; Silva, M.C. & Goyena, B.B. 2018. The breeding biology and nest success of the Short-tailed Antthrush Chamaeza campanisona (Aves: Formicariidae) in the Atlantic rainforest of northeastern Brazil. Zoologia, 35: 1-8. https://doi.org/10.3897/zoologia.35.e12906.
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). More recent bird collection expeditions carried out in the state include one in Olho d’Água do Casado, led by Galileu Coelho and Mário Ferreira da Silva in 1999, which produced a few hundred specimens now deposited at the FMNH and Universidade Federal de Pernambuco (UFPE), in Recife; one at Engenho Coimbra (Usina Serra Grande), led by the ornithologists Sônia Roda, Marcelo Sousa and Jose Tello between 1999 and 2000, which also produced a few hundred specimens deposited at the FMNH and UFPE; another at the same site by the Museu Paraense Emílio Goeldi (MPEG) in June 2010, which produced about seventy specimens; and several expeditions to multiple forest fragments (e.g., Mata do Cedro, Fazenda Santa Justina, Usina Coruripe, Usina Santo Antônio, Usina Sumaúma and Usina Serra Grande) led by LFS between 1999 and 2020, which produced hundreds of specimens deposited at the MZUSP. Also, since 2010 researchers from the Laboratório de Bioecologia e Conservação de Aves Neotropicais (LABECAN) at the Federal University of Alagoas (UFAL) have been monitoring birds in the largest forest fragment of the Murici Ecological Station, and birds collected therein have been deposited at the Museu de História Natural da UFAL (MHNAL), in Maceió. Results from these 1999-2020 expeditions have served as the basis for a number of studies (e.g.,Roda & Carlos, 2003Roda, S.A. & Carlos, C.J. 2003. New records for some poorly know birds of the Atlantic Forest of northeastern Brazil. Cotinga, 20: 17-20.; Silveira & Olmos, 2003Silveira, L.F. & Olmos, F. 2003. Cracids in coastal Alagoas state, northestern Brazil. In: Annual Review of the World Pheasant Association 2002/2003. Hampshire, UK. p. 49-52.; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46., bSilveira, L.F. ; Olmos, F. ; Roda, S.A. &Long, A.J . 2003b. Notes on the Seven-coloured Tanager Tangara fastuosa in north-east Brazil. Cotinga, 20: 82-88.; 2004Silveira, L.F. ; Olmos, F. &Long, A.J . 2004. Taxonomy, history and status of the Alagoas Curassow Mitu mitu (Linnaeus, 1766), the world’s most threatened Cracidae. Ararajuba, 12(2): 43-50.; Dénes et al., 2011Dénes, F.V.; Silveira, L.F.; Seipke, S.H.; Thorstrom, R.; Clark, W.S. & Thiollay, J.M. 2011. The White-collared Kite (Leptodon forbesi Swann, 1922) and a review of the taxonomy of the Gray-headed Kite (Leptodon cayanensis Latham, 1790). The Wilson Journal of Ornithology, 123(2): 323-331. https://doi.org/10.1676/10-081.1.
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; Batalha-Filho et al., 2013Batalha-Filho, H.; Irestedt, M.; Fjeldså, J.; Ericson, P.G.; Silveira, L.F. & Miyaki, C.Y. 2013. Molecular systematics and evolution of the Synallaxis ruficapilla complex (Aves: Furnariidae) in the Atlantic Forest. Molecular Phylogenetics and Evolution, 67(1): 86-94. https://doi.org/10.1016/j.ympev.2013.01.007.
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, 2014Batalha-Filho, H.; Pessoa, R.O.; Fabre, P.H.; Fjeldså, J.; Irestedt, M. Ericson, P.G.; Silveira, L.F. & Miyaki, C.Y. 2014. Phylogeny and historical biogeography of gnateaters (Passeriformes, Conopophagidae) in the South America forests. Molecular Phylogenetics and Evolution, 79: 422-432. https://doi.org/10.1016/j.ympev.2014.06.025.
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; Lobo-Araújo et al., 2013Lobo-Araújo, L.W.; Toleto, M.T.F.; Efe, M.A.; Malhado, A.C.M.; Vital, M.V.C.; Toledo-Lima, G.S.; Macario, P.; Santos, J.G. & Ladle, R.J. 2013. Bird communities in three forest types in the Pernambuco Centre of Endemism, Alagoas, Brazil. Iheringia, 103(2): 85-96. https://doi.org/10.1590/S0073-47212013000200002.
https://doi.org/10.1590/S0073-4721201300...
; Pereira et al., 2014bPereira, G.A.; Rodrigues, P.P.; Leal, S.; Periquito, M.C.; Silva, G.B.M.; Menêzes, M.; Corrêa, G.S.; Sonntag, F.A.; Almeida, A.E.M.N. & Nunes, P.B. 2014b. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil (2). Cotinga, 36: 45-50., 2019aPereira, G.A.; Araújo, H.F.P.; Azevedo-Júnior.; S.M.; Angelieri, C.C.S. & Silveira, L.F. 2019a. Distribution, threats and conservation of the White-collared Kite (Leptodon forbesi, Accipitridae), the most threatened raptor in the Neotropics. Papéis Avulsos de Zoologia, 59(28): 1-8. https://doi.org/10.11606/1807-0205/2019.59.28.
https://doi.org/10.11606/1807-0205/2019....
; Rêgo et al., 2014Rêgo, M.A.; Del-Rio, G. & Silveira, L.F. 2014. A taxonomic review of Picumnus exilis (Aves: Picidae) reveals an underestimation of Piculet species diversity in South America. Journal of Ornithology, 155(4): 853-867. https://doi.org/10.1007/s10336-014-1081-5.
https://doi.org/10.1007/s10336-014-1081-...
; Thom & Aleixo, 2015Thom, G. & Aleixo, A. 2015. Cryptic speciation in the white-shouldered antshrike (Thamnophilus aethiops, Aves-Thamnophilidae): The tale of a transcontinental radiation across rivers in lowland Amazonia and the northeastern Atlantic Forest. Molecular Phylogenetics and Evolution, 82: 95-110. https://doi.org/10.1016/j.ympev.2014.09.023.
https://doi.org/10.1016/j.ympev.2014.09....
; Tonetti et al., 2017Tonetti, V.R.; Bocalini, F.; Silveira, L.F. & Del-Rio, G. 2017. Taxonomy and molecular systematics of the Yellow-green Grosbeak Caryothraustes canadensis (Passeriformes: Cardinalidae). Revista Brasileira de Ornitologia, 25(3): 176-189. https://doi.org/10.1007/BF03544396.
https://doi.org/10.1007/BF03544396...
; Campos et al., 2018Campos, L.F.A.S.; Teixeira, B.P. & Efe, M.A. 2018. The importance of isolated patches for maintaining local bird biodiversity and ecosystem function: a case study from the Pernambuco Center of Endemism, Northeast Brazil. Iheringia, 108: e2018021. https://doi.org/10.1590/1678-4766e2018021.
https://doi.org/10.1590/1678-4766e201802...
; Bolívar-Leguizamón et al., 2020Bolívar-Leguizamón, S.D.; Silveira, L.F.; Derryberry, E.P.; Brumfield, R.T. & Bravo, G.A. 2020. Phylogeography of the variable antshrike (Thamnophilus caerulescens), a South American passerine distributed along multiple environmental gradients. Molecular Phylogenetics and Evolution, 148: 1-14, 106810. https://doi.org/10.1016/j.ympev.2020.106810.
https://doi.org/10.1016/j.ympev.2020.106...
; Harvey et al., 2020Harvey, M.G.; Bravo, G.A.; Claramunt, S.; Cuervo, A.M.; Derryberry, G.E.; Battilana, J.; Seeholzer, G.F.; McKay, J.S.; O’Meara, B.C.; Faircloth, B.C.; Edwards, S.V.; Pérez-Emán, J.; Moyle, R.G.; Sheldon, F.H.; Aleixo, A.; Smith, B.T.; Chesser, R.T.; Silveira, L.F.; Cracraft, J.; Brumfield, R.T. & Derryberry, E.P. 2020. The evolution of a tropical biodiversity hotspot. Science, 370(6522): 1343-1348. https://doi.org/10.1126/science.aaz6970.
https://doi.org/10.1126/science.aaz6970...
; Bocalini et al., 2021Bocalini, F.; Bolívar-Leguizamón, S.D.; Silveira, L.F. & Bravo, G.A. 2021. Comparative phylogeographic and demographic analyses reveal a congruent pattern of sister relationships between bird populations of the northern and south-central Atlantic Forest. Molecular Phylogenetics and Evolution, 154: 1-20, 106973. https://doi.org/10.1016/j.ympev.2020.106973.
https://doi.org/10.1016/j.ympev.2020.106...
; Carvalho et al., 2021Carvalho, C.S.; Martello, F.; Galetti, M.; Pinto, F.; Francisco, M.R.; Silveira, L.F. & Galetti, P.M. 2021. Environmental heterogeneity and sampling relevance areas in an Atlantic Forest endemism region. Perspectives in Ecology and Conservation, 19(3): 311-318. https://doi.org/10.1016/j.pecon.2021.05.001.
https://doi.org/10.1016/j.pecon.2021.05....
; Dickens et al., 2021Dickens, J.K.; Bitton, P.P.; Bravo, G.A. & Silveira, L.F. 2021. Species limits, patterns of secondary contact and a new species in the Trogon rufus complex (Aves: Trogonidae). Zoological Journal of the Linnean Society, 193(2): 499-540. https://doi.org/10.1093/zoolinnean/zlaa169.
https://doi.org/10.1093/zoolinnean/zlaa1...
; Francisco et al., 2021Francisco, M.R.; Costa, M.C.; Azeredo, R.M.; Simpson, J.G.; Dias, T.C.; Fonseca, A.; Pinto, F.J.M. & Silveira, L.F. 2021. Recovered after an extreme bottleneck and saved by ex situ management: lessons from the Alagoas curassow (Pauxi mitu [Linnaeus, 1766]; Aves, Galliformes, Cracidae). Zoo Biology, 40(1): 76-78. https://doi.org/10.1002/zoo.21577.
https://doi.org/10.1002/zoo.21577...
; Gonçalves & Efe, 2022Gonçalves, R.O. & Efe, M.A. 2022. On the reproductive biology of the critically threatened Alagoas Antwren (Myrmotherula snowi). The Wilson Journal of Ornithology, 133(3): 472-476. https://doi.org/10.1676/20-00030.
https://doi.org/10.1676/20-00030...
). The number of ornithological surveys (e.g.,Cabral et al., 2006Cabral, S.A.S.; Azevedo-Júnior, S.M. & Larrazábal, M.A. 2006. Levantamento das aves da Área de Proteção Ambiental de Piaçabuçu, no litoral de Alagoas, Brasil. Ornithologia, 1(2): 161-167.; Araujo & Rodrigues, 2011Araujo, H.F.P. & Rodrigues, R.C. 2011. Birds from open environments in the caatinga from state of Alagoas, northeastern Brazil. Zoologia, 28(5): 629-640. https://doi.org/10.1590/S1984-46702011000500011.
https://doi.org/10.1590/S1984-4670201100...
; Lyra-Neves et al., 2012Lyra-Neves, R.M.; Azevedo-Júnior, S.M.; Telino-Júnior, W.R. & Larrazábal, M.E.L. 2012. The Birds of the Talhado do São Francisco Natural Monument in the Semi-Arid Brazilian Northeast. Revista Brasileira de Ornitologia, 20(3): 268-289.; Portes et al., 2018Portes, C.E.B.; Godoy, F.I. & Kuniy, A.A. 2018. Avifauna de três fragmentos de vegetação no litoral norte do estado de Alagoas, com ênfase em novos registros de aves ameaçadas. Atualidades Ornitológicas, 204: 33-42.); many notes on specific records for the state have also been published (e.g.,Silva e Silva, 1996Silva e Silva, R. 1996. Records and geographical distribution of the Peregrine Falcon Falco peregrinus Tunstall, 1771 (Aves, Falconidae) in Brazil. Papéis Avulsos de Zoologia, 39(13): 249-270.; Olmos, 2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.; Sousa et al., 2005Sousa, M.C.; Fraga, R.T. & Carlos, C.J. 2005. Seabird records from Alagoas and Sergipe states, north-east Brazil. Cotinga, 24: 112-114.; Mestre, 2007Mestre, L.A.M. 2007. Recuperações no Brasil de Falcões-peregrinos (Falco peregrinus) anilhados na América do Norte entre 1967 e 2001. Ornithologia, 2(2): 72-80.; Lobo-Araújo et al., 2008Lobo-Araújo, L.W.; Pereira, G.A.; Leal, S. & Sousa, M.C. 2008. Registros de Tyrannus savana (Aves: Tyrannidae) para o Estado de Alagoas, Brasil. Atualidades Ornitológicas, 145: 14.; Patrial et al., 2011Patrial, L.W.; Pessoa, A.S.P. & Pereira, G.A. 2011. Primeiro registro do pelicano-peruano Pelecanus thagus no Brasil e registro documentado do pelicano-pardo P. occidentalis na costa leste brasileira. Revista Brasileira de Ornitologia, 19(4): 539-540.; Pereira et al., 2012Pereira, G.A.; Lobo-Araújo, L.W.; Leal, S.; Medcraft, J.P.; Marantz, C.A.; Toledo, M.T.F.; Araujo, H.F.P.; Albano, C.; Pinto, T.; Santos, C.H.A.; Serapião, L.C.H.; Silva, G.B.M. & Pioli, D. 2012. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil. Cotinga, 34: 17-22.; Leal et al., 2013Leal, S.; Serapião, L.C.H. & Pereira, G.A. 2013. Registros documentados da gaivota-de-franklin Leucophaeus pipixcan (Wagler, 1831) no Nordeste do Brasil e da gaivota-de-cabeça-cinza Chroicocephalus cirrocephalus (Vieillot, 1817) nos Estados de Alagoas e Pernambuco. Revista Brasileira de Ornitologia, 21(1): 105-108.) and birdwatchers have also been producing many new records for the state (WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
).

All this knowledge about the avifauna of Alagoas is, however, currently scattered on several publications and the state’s birds have never been comprehensively assembled into a checklist. Thus, we present here the first critical review of all available bird records for the state of Alagoas, wherein we thoroughly consider each species’ occurrence to assemble an annotated checklist of the state’s avifauna and highlight noteworthy cases, including comments on the distribution (including new records for the state and range extensions for some species), migratory movements, taxonomy and conservation of the region’s avifauna. Such a review allows us not only to indicate how many and which bird species occur in the state, but also to synthesize the knowledge accumulated on such species - for instance, about regional patterns of geographic variation, regional extinctions, and pointing out subjects that need further research - and correct misidentified records published for the region, thus preventing their dissemination into the literature.

METHODS

We compiled bird records from the state’s mainland and offshore areas up to the edge of the continental shelf (ca. 40 km from the coast). Records came from various sources, including an exhaustive survey of the ornithological literature, searches on online archives such as WikiAves (WA; www.wikiaves.com.br), Macaulay Library (ML; www.macaulaylibrary.org), xeno-canto (XC; www.xeno-canto.org), Fonoteca Neotropical Jacques Vielliard (FNJV; www2.ib.unicamp.br/fnjv), Arquivo Sonoro Elias Coelho (ASEC), Global Biodiversity Information Facility (GBIF; www.gbif.org), VertNet (www.vertnet.org), Integrated Digitized Biocollections (iDigBio; www.idigbio.org) and Brazilian Biodiversity Information System (SiBBr; www.sibbr.gov.br), personal communication with researchers that conducted field work in the state, and our own unpublished records. We also examined hundreds of museum specimens collected in the state, many of which are cited below throughout the species accounts. By searching on GBIF, VertNet, iDigBio and SiBBr, and in the literature, we found bird specimens from Alagoas in the collections of the British Museum of Natural History at Tring (NHMUK), Carnegie Museum of Natural History (CMNH), Field Museum of Natural History (FMNH), Los Angeles County Museum (LACM), Louisiana State University Museum of Natural Science (LSUMZ), Museum of Comparative Zoology (MCZ), Smithsonian National Museum of Natural History (USNM), Western Foundation of Vertebrate Zoology (WFVZ), Museu Nacional do Rio de Janeiro (MNRJ), Museu Paraense Emílio Goeldi (MPEG), Museu de Zoologia da Universidade de São Paulo (MZUSP), Museu de História Natural da Universidade Federal de Alagoas (MHNAL), Coleção Ornitológica da Universidade Federal de Pernambuco (UFPE), Coleção Ornitológica da Universidade Federal do Rio Grande do Norte (UFRN) and Coleção de Aves do Museu de Zoologia da UNICAMP (ZUEC). Every important or biogeographically unexpected record in these collections was carefully checked either physically or through photographs requested from the curatorial staff.

In order to facilitate comparisons among Brazilian state checklists, we follow the taxonomy of the Brazilian Ornithological Records Committee (CBRO; Pacheco et al., 2021Pacheco, J.F.; Silveira, L.F.; Aleixo, A.; Agne, C.E.; Bencke, G.A.; Bravo, G.A.; Brito, G.R.R.; Cohn-Haft, M.; Maurício, G.N.; Naka, L.N.; Olmos, F.; Posso, S.; Lees, A.C.; Figueiredo, L.F.A.; Carrano, E.; Guedes, R.C.; Cesari, E.; Franz, I.; Schunck, F. & Piacentini, V.Q. 2021. Annotated checklist of the birds of Brazil by the Brazilian Ornithological Records Committee - second edition. Ornithology Research, 29(2): 94-105. https://doi.org/10.1007/s43388-021-00058-x.
https://doi.org/10.1007/s43388-021-00058...
). In addition, we adopt their format by dividing the state’s checklist into three components to distinguish species according to the availability and validity of documentary evidence (see also Carlos et al., 2010Carlos, C.J.; Straube, F.C. & Pacheco, J.F. 2010. Conceitos e definições sobre documentação de registros ornitológicos e critérios para a elaboração de listas de aves para os estados brasileiros. Revista Brasileira de Ornitologia, 18(4): 355-361.). The primary list includes only species with at least one documented record in the state (i.e., an evidence-based record such as a specimen, photograph or sound recording), whereas the secondary list includes species with published records for the state, but whose documentary evidence either does not exist (e.g., sight records) or is unavailable. The primary and secondary lists form the state’s main checklist, with species of the secondary list presented within brackets to distinguish them from those supported by documented records (Appendix 1). Finally, a tertiary list includes species for which there are published records for the state, but whose evidence is either questionable or considered invalid herein (Appendix 2 APPENDIX 2 Tertiary list - species for which there are published records for the state, but whose evidence is either questionable or invalid. Crypturellus variegatus One tinamou collected in Igarassu, Pernambuco, on 25 July 1996 (UFPE 1122) was identified as being Crypturellus variegatus and then the putative occurrence of this species in the PCE, based on this record, probably set a precedent for subsequent misidentified records of C. variegatus in Alagoas (Roda, 2003). We have checked the abovementioned specimen and it proved to be a C. soui (photos available upon request). We consider all records allegedly of C. variegatus in the PCE (Roda, 2003), probably aural encounters, to be misidentifications of C. strigulosus. Chionomesa lactea, Aramides saracura and Psittacara leucophthalmus These species were listed for the state in an obscure paper (Silva et al., 2015). The concerned paper contains so many errors that it is difficult to take it seriously and the records allegedly of these species are obvious confusions with similar species, namely Chionomesa fimbriata, Aramides cajaneus and Diopsittaca nobilis. Amadonastur lacernulatus Alleged occurrence of this species in the PCE is due to a cascade of errors. Another white hawk that occurs in the PCE, the White-collared Kite Leptodon forbesi, was long believed to be an invalid species (see Dénes et al., 2011). It follows that L. forbesi was largely omitted from field guides and reference works (e.g.,Sick, 1997) and thus many ornithologists made misidentifications of white hawks in the PCE. Pinto & Camargo (1961) were the first to report the occurrence of A. lacernulatus in the PCE. They collected a specimen of L. forbesi in Alagoas and misidentified it as A. lacernulatus, an error discovered only decades later after reexamination of the specimen (Dénes et al., 2011). In the meantime, the alleged occurrence of A. lacernulatus in the PCE, based on Pinto and Camargo’s misidentified record, was widely disseminated in the ornithological literature (Pinto, 1978; Collar et al., 1992; Thiollay, 1994; Pacheco & Whitney, 1995; Sick, 1997; Ferguson-Lees & Christie, 2001) and some ornithologists who conducted field surveys in the PCE published a lot misidentified records allegedly of this species (Collar et al., 1992; Wege & Long, 1995; Pacheco & Whitney, 1995; Roda et al., 2003; Roda & Pereira, 2006; Almeida & Teixeira, 2010). Now, we know that L. forbesi is a valid species and relatively common in the PCE (Pereira et al., 2019a; Lima et al., 2020), and that all alleged records of A. lacernulatus in this region are likely misidentifications of either L. forbesi or Mantled Hawk Pseudastur polionotus. Piculus chrysochloros A record from the Murici Ecological Station identified as being of this species (Silveira et al., 2003a) is a confusion with P. flavigula. Occurrence in the state, however, is not unlikely, but in the Caatinga westwards. Pyrrhura cruentata and Dendroma rufa In 1865, a group of scientists from the Museum of Comparative Zoology (MCZ) embarked for Brazil in an expedition to study the country’s fauna and flora (Dick, 1977). Newton Dexter, a member of the expedition, collected bird specimens in the state of Bahia for two or three weeks, and after in Maceió, Alagoas, where he stayed only one day (Agassiz, 1868: chapter IV). Among the specimens from this expedition in the MCZ bird collection, twenty have “Maceió, Alagoas” and none has “Bahia” as the locality of collection on their labels. Two of these specimens, namely a Pyrrhura cruentata (MCZ 7251) and a Dendroma rufa (MCZ 7242), called our attention because Maceió is far from the known northern limits of these species in Brazil. Other noteworthy species, considering that they may have been collected in Maceió, include Odontophorus capueira and Chelidoptera tenebrosa. Unfortunately, we were not able to ascertain whether these specimens were really collected in Alagoas and we believe that the assignment of all of them to Alagoas instead of Bahia is probably due to clerical error. Pipra fasciicauda The species has been reported for Alagoas in some reference works (Ridgely & Tudor, 1994, 2009; Haffer, 1997; Snow, 2004) without any evidence regarding its alleged occurrence in the state. As already noted by Albano & Girão (2008) and Kirwan & Green (2012), the alleged occurrence of the Band-tailed Manakin in Alagoas lacks evidence to be credible and is likely erroneous. Myiornis auricularis A sound-recording from the Murici Ecological Station formerly identified as being of this species (XC 284000; J. Minns) was cited in an article (Ruiz-Esparza et al., 2018), constituting the only mention of Myiornis auricularis for the state. The animal in this sound-recording, however, is in fact a frog (Pristimantis ramagii; Marcos Dubeux pers. comm.). Conopias trivirgatus The species was mentioned in a bird list from Piaçabuçu without any details (Cabral et al., 2006). This record is likely a misidentification of the regionally common Social Flycatcher Myiozetetes similis. Hylophilus pectoralis Alleged record for this species in Alagoas (Pinto & Camargo, 1961) is a misidentification for Gray-eyed Greenlet H. amaurocephalus (Pacheco et al., 2011). Tachycineta leucorrhoa A single undocumented record in Alagoas (Silveira et al., 2003a) is likely a misidentification of White-winged Swallow Tachycineta albiventer. Although T. leucorrhoa is known to occur in extreme northeastern Brazil (Sagot-Martin et al., 2020), and thus its occurrence in the state would not be unexpected, the putative Alagoas record was near a large water reservoir, typical habitat of the regionally much commoner T. albiventer, which is absent in Silveira et al.’s (2003a) list. Sporophila ardesiaca Recent records in the state (e.g., WA 3870941; C. Almeida) are likely of cagebirds inappropriately released by the environmental police in the region, since the species is known to be traded on the local black market (Lopes & Freitas, 2017) and had never been recorded in the region. Sporophila caerulescens Recent records in the states of Alagoas (e.g., WA 4446358; A. Rodrigues) and Pernambuco (e.g., WA 2394408; C. Gussoni) are likely of cagebirds inappropriately released in the region, since the species is known to be traded on the local black market (Pagano et al., 2009; Licarião et al., 2013) and had never been recorded in the region. Sporophila maximiliani We were unable to trace any records from Alagoas. Therefore, we consider the putative occurrence of this species in the state mentioned by Sick (1997) to be speculative. See the species’ range based on documentary evidence in Ubaid et al. (2018). ). The latter is an effective way of cleaning up misidentifications and dubious records from the literature and, of course, species listed therein must not be considered part of the state’s avifauna.

Species in the primary list were assigned to one of five categories regarding their status in the state: resident (RE), seasonal visitor from the Northern Hemisphere (VN), seasonal visitor from the Southern Hemisphere (VS), vagrant (VA) or unknown (UN). Species known or assumed to be resident throughout their range were automatically treated as resident in the state unless there is evidence suggesting otherwise, whereas species known to undertake migratory movements (e.g.,Sick, 1983Sick, H. 1983. Migrações de aves na América do Sul continental. Brasília, CEMAVE., 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.; Chesser, 1994Chesser, R.T. 1994. Migration in South America: an overview of the austral system. Bird Conservation International, 4: 91-107. https://doi.org/10.1017/S0959270900002690.
https://doi.org/10.1017/S095927090000269...
; Somenzari et al., 2018Somenzari, M.; Amara, P.P.; Cueto, V.R.; Guaraldo, A.C.; Jahn, A.E.; Lima, D.M.; Lima, P.C.; Lugarini, C.; Machado, C.G.; Martinez, J.; Nascimento, J.L.X.; Pacheco, J.F.; Paludo, D.; Prestes, N.P.; Serafini, P.P.; Silveira, L.F. ; Sousa, A.E.B.A.; Sousa, N.A.; Souza, M.A.; Telino-Júnior, W.R. & Whitney, B.M. 2018. An overview of migratory birds in Brazil. Papéis Avulsos de Zoologia, 58(3): 1-66. https://doi.org/10.11606/1807-0205/2018.58.03.
https://doi.org/10.11606/1807-0205/2018....
) were analyzed on a case-by-case basis and then classified according to their status within the state. Species in the secondary list were not assigned to such categories because the very occurrence of some of them in the state is uncertain.

All localities mentioned in the species accounts and in the discussion are in Alagoas, unless otherwise stated. Coordinates for the localities in Alagoas are given in Fig. 1 and Table 1, while localities in other states are georeferenced in the main text when necessary.

RESULTS

We present a list of 520 bird species recorded in the state of Alagoas, of which 503 are on the primary list and 17 are on the secondary list (Appendix 1). Residents and seasonal visitors correspond to 87.1% (n = 438) and 8.8% (n = 44) of the primary list, respectively. Vagrants are represented by only four species in the primary list and 17 species have unknown status in the state. We also found 16 species allegedly recorded in the state, but whose records we have considered to be either questionable or invalid (noted as such in Appendix 2 APPENDIX 2 Tertiary list - species for which there are published records for the state, but whose evidence is either questionable or invalid. Crypturellus variegatus One tinamou collected in Igarassu, Pernambuco, on 25 July 1996 (UFPE 1122) was identified as being Crypturellus variegatus and then the putative occurrence of this species in the PCE, based on this record, probably set a precedent for subsequent misidentified records of C. variegatus in Alagoas (Roda, 2003). We have checked the abovementioned specimen and it proved to be a C. soui (photos available upon request). We consider all records allegedly of C. variegatus in the PCE (Roda, 2003), probably aural encounters, to be misidentifications of C. strigulosus. Chionomesa lactea, Aramides saracura and Psittacara leucophthalmus These species were listed for the state in an obscure paper (Silva et al., 2015). The concerned paper contains so many errors that it is difficult to take it seriously and the records allegedly of these species are obvious confusions with similar species, namely Chionomesa fimbriata, Aramides cajaneus and Diopsittaca nobilis. Amadonastur lacernulatus Alleged occurrence of this species in the PCE is due to a cascade of errors. Another white hawk that occurs in the PCE, the White-collared Kite Leptodon forbesi, was long believed to be an invalid species (see Dénes et al., 2011). It follows that L. forbesi was largely omitted from field guides and reference works (e.g.,Sick, 1997) and thus many ornithologists made misidentifications of white hawks in the PCE. Pinto & Camargo (1961) were the first to report the occurrence of A. lacernulatus in the PCE. They collected a specimen of L. forbesi in Alagoas and misidentified it as A. lacernulatus, an error discovered only decades later after reexamination of the specimen (Dénes et al., 2011). In the meantime, the alleged occurrence of A. lacernulatus in the PCE, based on Pinto and Camargo’s misidentified record, was widely disseminated in the ornithological literature (Pinto, 1978; Collar et al., 1992; Thiollay, 1994; Pacheco & Whitney, 1995; Sick, 1997; Ferguson-Lees & Christie, 2001) and some ornithologists who conducted field surveys in the PCE published a lot misidentified records allegedly of this species (Collar et al., 1992; Wege & Long, 1995; Pacheco & Whitney, 1995; Roda et al., 2003; Roda & Pereira, 2006; Almeida & Teixeira, 2010). Now, we know that L. forbesi is a valid species and relatively common in the PCE (Pereira et al., 2019a; Lima et al., 2020), and that all alleged records of A. lacernulatus in this region are likely misidentifications of either L. forbesi or Mantled Hawk Pseudastur polionotus. Piculus chrysochloros A record from the Murici Ecological Station identified as being of this species (Silveira et al., 2003a) is a confusion with P. flavigula. Occurrence in the state, however, is not unlikely, but in the Caatinga westwards. Pyrrhura cruentata and Dendroma rufa In 1865, a group of scientists from the Museum of Comparative Zoology (MCZ) embarked for Brazil in an expedition to study the country’s fauna and flora (Dick, 1977). Newton Dexter, a member of the expedition, collected bird specimens in the state of Bahia for two or three weeks, and after in Maceió, Alagoas, where he stayed only one day (Agassiz, 1868: chapter IV). Among the specimens from this expedition in the MCZ bird collection, twenty have “Maceió, Alagoas” and none has “Bahia” as the locality of collection on their labels. Two of these specimens, namely a Pyrrhura cruentata (MCZ 7251) and a Dendroma rufa (MCZ 7242), called our attention because Maceió is far from the known northern limits of these species in Brazil. Other noteworthy species, considering that they may have been collected in Maceió, include Odontophorus capueira and Chelidoptera tenebrosa. Unfortunately, we were not able to ascertain whether these specimens were really collected in Alagoas and we believe that the assignment of all of them to Alagoas instead of Bahia is probably due to clerical error. Pipra fasciicauda The species has been reported for Alagoas in some reference works (Ridgely & Tudor, 1994, 2009; Haffer, 1997; Snow, 2004) without any evidence regarding its alleged occurrence in the state. As already noted by Albano & Girão (2008) and Kirwan & Green (2012), the alleged occurrence of the Band-tailed Manakin in Alagoas lacks evidence to be credible and is likely erroneous. Myiornis auricularis A sound-recording from the Murici Ecological Station formerly identified as being of this species (XC 284000; J. Minns) was cited in an article (Ruiz-Esparza et al., 2018), constituting the only mention of Myiornis auricularis for the state. The animal in this sound-recording, however, is in fact a frog (Pristimantis ramagii; Marcos Dubeux pers. comm.). Conopias trivirgatus The species was mentioned in a bird list from Piaçabuçu without any details (Cabral et al., 2006). This record is likely a misidentification of the regionally common Social Flycatcher Myiozetetes similis. Hylophilus pectoralis Alleged record for this species in Alagoas (Pinto & Camargo, 1961) is a misidentification for Gray-eyed Greenlet H. amaurocephalus (Pacheco et al., 2011). Tachycineta leucorrhoa A single undocumented record in Alagoas (Silveira et al., 2003a) is likely a misidentification of White-winged Swallow Tachycineta albiventer. Although T. leucorrhoa is known to occur in extreme northeastern Brazil (Sagot-Martin et al., 2020), and thus its occurrence in the state would not be unexpected, the putative Alagoas record was near a large water reservoir, typical habitat of the regionally much commoner T. albiventer, which is absent in Silveira et al.’s (2003a) list. Sporophila ardesiaca Recent records in the state (e.g., WA 3870941; C. Almeida) are likely of cagebirds inappropriately released by the environmental police in the region, since the species is known to be traded on the local black market (Lopes & Freitas, 2017) and had never been recorded in the region. Sporophila caerulescens Recent records in the states of Alagoas (e.g., WA 4446358; A. Rodrigues) and Pernambuco (e.g., WA 2394408; C. Gussoni) are likely of cagebirds inappropriately released in the region, since the species is known to be traded on the local black market (Pagano et al., 2009; Licarião et al., 2013) and had never been recorded in the region. Sporophila maximiliani We were unable to trace any records from Alagoas. Therefore, we consider the putative occurrence of this species in the state mentioned by Sick (1997) to be speculative. See the species’ range based on documentary evidence in Ubaid et al. (2018). ). Below we highlight noteworthy records for the state, including new records, range extensions, comments on single records, and notes substantiating the inclusion of every species on the secondary list.

Noteworthy species on the primary list

Crypturellus strigulosus

This Amazonian tinamou with an isolated population in the PCE was seemingly once common and abundant in the lowland rainforests of Pernambuco (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.). Three collected at Usina Sinimbu in 1952 (MZUSP 37156-37158; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.), and another six in 1957 (MZUSP 38909-38911; LACM 26744-26746), suggest that it was also common in nearby Alagoas until the 1950s. More recent records range from 1990 to 2019 and are from Dois Irmãos State Park (XC 7951; G.A. Pereira) and Paulista (XC 124710; M. Braun), Pernambuco, and from Passo de Camaragibe (WA 1450011; J.F. Pacheco), Fazenda Pindoba (XC 568540; G.S.T. Lima), Usina Sumaúma (four birds singing in September 2019; LFS) and Usina Santo Antônio (Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.), Alagoas. The PCE isolated population is now extremely rare, local, vulnerable to hunting and on the verge of extinction. No captive population of this isolated population is known, and genetic information is not available.

Pauxi mitu

Described from a 17th-century painting (Marcgrave, 1648Marcgrave, G. 1648. Historia Naturalis Brasiliae. Amsterdam, Lungdunum Batavorum.; Linnaeus, 1766Linnaeus, C. 1766. Systema naturae per regna tria naturae. 12º ed. Stockholm, Holmiae, L. Salvii.), rediscovered only in the 1950s (Pinto, 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334.), and then extinct in the wild during the 1980s (Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Silveira et al., 2004Silveira, L.F. ; Olmos, F. &Long, A.J . 2004. Taxonomy, history and status of the Alagoas Curassow Mitu mitu (Linnaeus, 1766), the world’s most threatened Cracidae. Ararajuba, 12(2): 43-50.), the Alagoas Curassow is now being reintroduced in the wild after a successful captive breeding program (Francisco et al., 2021Francisco, M.R.; Costa, M.C.; Azeredo, R.M.; Simpson, J.G.; Dias, T.C.; Fonseca, A.; Pinto, F.J.M. & Silveira, L.F. 2021. Recovered after an extreme bottleneck and saved by ex situ management: lessons from the Alagoas curassow (Pauxi mitu [Linnaeus, 1766]; Aves, Galliformes, Cracidae). Zoo Biology, 40(1): 76-78. https://doi.org/10.1002/zoo.21577.
https://doi.org/10.1002/zoo.21577...
). Information regarding its puzzling taxonomic history and conservation has been covered in detail elsewhere (Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Costa et al., 2017Costa, M.C.; Oliveira, P.R.; Davanço, P.V.; Camargo, C.D.; Laganaro, N.M.; Azeredo, R.A.; Simpson, J.; Silveira, L.F & Francisco, M.R. 2017. Recovering the genetic identity of an extinct-in-the-wild species: the puzzling case of the Alagoas Curassow. PloS One, 12(1): e0169636. https://doi.org/10.1371/journal.pone.0169636.
https://doi.org/10.1371/journal.pone.016...
; Silveira et al., 2004Silveira, L.F. ; Olmos, F. &Long, A.J . 2004. Taxonomy, history and status of the Alagoas Curassow Mitu mitu (Linnaeus, 1766), the world’s most threatened Cracidae. Ararajuba, 12(2): 43-50., 2008Silveira, L.F. ; Roda, S.A. ; Santos, A.M.M.; Soares, E.S. & Bianchi, C.A. 2008. Plano de ação nacional para a conservação do mutum-de-alagoas (Mitu mitu = Pauxi mitu). Brasília, ICMBio.).

Odontophorus capueira plumbeicollis

Formerly known from several locations throughout the PCE and two rainforest enclaves in northern Ceará (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.; Albano & Girão, 2008Albano, C. & Girão, W. 2008. Aves das matas úmidas das serras de Aratanha, Baturité e Maranguape, Ceará. Revista Brasileira de Ornitologia, 16(2): 142-154.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará., 2008Roda, S.A. 2008. Odontophorus capueira plumbeicollis Cory, 1915. In: Machado, A.B.M.; Drummond, G.M. & Paglia, A. Livro Vermelho da Fauna Brasileira Ameaçada de Extinção. Brasília, Ministério do Meio Ambiente e Fundação Biodiversitas. p. 440-441.; Almeida & Teixeira, 2010Almeida, A.C.C. & Teixeira, D.M. 2010. Aves da Reserva Biológica Guaribas, Mamanguape, Paraíba, Brasil. Revista Nordestina de Biologia, 19(2): 3-14.), the critically endangered O. c. plumbeicollis has only two known surviving populations, one in Serra de Baturité, Ceará, and the other in the Pedra Talhada Biological Reserve, Alagoas (Studer, 2015Studer, A. 2015. Aves da Reserva Biológica de Pedra Talhada. In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 377-405.).

Geotrygon violacea

One specimen collected at Usina Sinimbu on 18 February 1957 (MZUSP 38945; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.; Fig. 2), an unspecified number of individuals observed in Murici in the 1980s (Teixeira et al., 1993Teixeira, D.M.; Otoch, R.; Luigi, G.; Raposo, M.A. & Almeida, A.C.C. 1993. Notes on some birds of northeastern Brazil (5). Bulletin of the British Ornithologists’ Club, 113(1): 48-52.), two birds observed at Fazenda Santa Justina in 2017 (LFS), and four birds mist-netted at the Murici Ecological Station between 2011 and 2019 are the only records of this rather rare dove in the PCE.

Figure 2
Violaceous Quail-Dove, MZUSP 38945, collected at Usina Sinimbu, Alagoas, on 18 February 1957 (© Rafael D. Lima).

Chaetura spinicaudus

Two specimens collected at Usina Sinimbu on 13 November 1952 (MZUSP 35984 and 35985; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Fig. 3), one collected at the Murici Ecological Station on 5 May 1984 (MNRJ 33826; Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.) and another four collected in Murici retrieved on GBIF (MNRJ 34935, 34936, MNA2637 and MNA2647) are the only documented records of this swift in the PCE. Sightings are reported from other sites, including Mata da Sela, Engenho Coimbra, and Usina Santo Antônio (Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.).

Figure 3
Band-rumped Swifts, MZUSP 35984 and 35985, collected at Usina Sinimbu, Alagoas, on 13 November 1952 (© Rafael D. Lima).

Gallinago undulata gigantea

The occurrence of this species in northeastern Brazil - where it is very local and usually syntopic with the much commoner G. paraguaiae - is often overlooked in reference works and field guides (e.g.,Erize et al., 2006Erize, F.; Mata, J.R.R. & Rumboll, M. 2006. Birds of South America. Non-Passerines: Rheas to Woodpeckers. Princeton, Princeton University Press.; Van Gils et al., 2020Van Gils, J.; Wiersma, P. & Kirwan, G.M. 2020. Giant Snipe (Gallinago undulata), version 1.0. In: Schulenberg, T.S. Birds of the World. Ithaca, Cornell Lab of Ornithology. https://doi.org/10.2173/bow.giasni1.01. Access: 15/03/2022.
https://doi.org/10.2173/bow.giasni1.01...
). One specimen collected in São Miguel dos Campos (MNRJ 34436) is the only record of this species in Alagoas. Other records in the PCE include two specimens collected in Recife on 16 July 1943 (USNM 375743) and 15 September 1943 (USNM 375744; Lamm, 1948Lamm, D.W. 1948. Notes on the birds of the states of Pernambuco and Paraíba, Brazil. The Auk, 65(2): 261-283. https://doi.org/10.2307/4080302.
https://doi.org/10.2307/4080302...
) and one collected in Igarassu on 4 February 1945 (MNRJ 24678; Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.), all in Pernambuco.

Chroicocephalus maculipennis

One specimen collected at Barra Grande on 22 September 1883 (NHMUK 1894.10.28.26; Fig. 4) is possibly the only record of this gull in northeastern Brazil (Saunders, 1896Saunders, H. 1896. Catalogue of the Gaviae and Tubinares in the collection of the British Museum. London, Longman & Co.; Hellmayr & Conover, 1948bHellmayr, C.E. & Conover, B. 1948b. Catalogue of the birds of the Americas and the adjacent islands in Field Museum of Natural History. Chicago, Field Museum Press. v. 13, part I, number 3.; Pinto, 1978Pinto, O.M.O.. 1978. Novo catálogo das aves do Brasil. 1ª parte. São Paulo, Empresa Gráfica Revista dos Tribunais.; Sick, 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.). Another specimen collected at Pontal do Peba, identified as being of this species, was retrieved on GBIF (MNRJ 36035), but it was not possible to check it and confirm its identification.

Figure 4
Brown-hooded Gull, NHMUK 1894.10.28.26, collected at Barra Grande, Maragogi, Alagoas, on 22 September 1883 (© Mark Adams).

Spheniscus magellanicus

Dantas et al. (2013Dantas, G.P.M.; Almeida, V.S.; Maracini, P.; Serra, S.D.; Chame, M.; Labarthe, N.; Kolesnikovas, C.; Siciliano, S.; Matias, C.A.R.; Moura, J.F.; Campos, S.D.E.; Mader, A. & Serafini, P.P. 2013. Evidence for northward extension of the winter range of Magellanic Penguins along the Brazilian coast. Marine Ornithology, 41: 195-197.) suggested that the species has recently extended its winter range northward. However, they stated that the species had never been recorded before 2008 in Alagoas, when in fact it had been recorded in the state since the 1950s (Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.). It is not so clear whether the birds that arrive in Alagoas are just vagrants or birds that have extended their winter range, but Magellanic Penguins beached in the region are not uncommon and thus the latter option may be valid (as advocated by Dantas et al., 2013Dantas, G.P.M.; Almeida, V.S.; Maracini, P.; Serra, S.D.; Chame, M.; Labarthe, N.; Kolesnikovas, C.; Siciliano, S.; Matias, C.A.R.; Moura, J.F.; Campos, S.D.E.; Mader, A. & Serafini, P.P. 2013. Evidence for northward extension of the winter range of Magellanic Penguins along the Brazilian coast. Marine Ornithology, 41: 195-197.). For instance, a monitoring program found 53 individuals beached between Piaçabuçu, Alagoas, and Conde, Bahia, between 2010 and 2015 (Almeida et al., 2019Almeida, B.J.M.; Moreira, A.L.; Borges, J.C.G.; Batista, R.L.G.; Parente, J.E.V. & Reis, E.C. 2019. Aves marinhas e costeiras da bacia de Sergipe-Alagoas. In: Reis, E.C. & Carneiro M.E.R. Quelônios, aves e mamíferos da bacia Sergipe-Alagoas. São Cristóvão, Editora da Universidade Federal de Sergipe. p. 70-115.).

Procellaria aequinoctialis

Previous northernmost records in Brazil are from the states of Bahia and Sergipe (Lima et al., 2004Lima, P.C.; Grantsau, R.; Lima, R.C.F.R. & Santos, S.S. 2004. Occurrence and mortality of seabirds along the northern coast of Bahia, and the identifcation key of the Procellariiformes order and the Stercorariidae family. Atualidades Ornitológicas, 121: 1-62.; Sousa et al., 2005Sousa, M.C.; Fraga, R.T. & Carlos, C.J. 2005. Seabird records from Alagoas and Sergipe states, north-east Brazil. Cotinga, 24: 112-114.; Somenzari et al., 2018Somenzari, M.; Amara, P.P.; Cueto, V.R.; Guaraldo, A.C.; Jahn, A.E.; Lima, D.M.; Lima, P.C.; Lugarini, C.; Machado, C.G.; Martinez, J.; Nascimento, J.L.X.; Pacheco, J.F.; Paludo, D.; Prestes, N.P.; Serafini, P.P.; Silveira, L.F. ; Sousa, A.E.B.A.; Sousa, N.A.; Souza, M.A.; Telino-Júnior, W.R. & Whitney, B.M. 2018. An overview of migratory birds in Brazil. Papéis Avulsos de Zoologia, 58(3): 1-66. https://doi.org/10.11606/1807-0205/2018.58.03.
https://doi.org/10.11606/1807-0205/2018....
). One carcass found at Gunga Beach on 6 July 2018 is the only record in Alagoas (Fig. 5).

Figure 5
White-chinned Petrel found at Gunga Beach, Roteiro, Alagoas, on 6 July 2018 (© Instituto Biota de Conservação).

Mycteria americana

Records in the state are restricted to October-April (WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
). With the exception of two records in June and July, records from the nearby states of Ceará, Rio Grande do Norte, Paraíba, Pernambuco and Sergipe on WikiAves are also restricted to October-April (WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
), suggesting that Wood Storks may be seasonal visitors in extreme northeastern Brazil. The species is known to undertake migratory movements according to local water levels, leaving breeding grounds when the water level is too high for tactile feeding (Del Lama et al., 2015Del Lama, S.N.; Avelar, L.H.D.S. & Nascimento, J.L.X. 2015. Post breeding movements of Wood Storks in Brazil and Argentina. Journal of Field Ornithology, 86(4): 283-287. https://doi.org/10.1111/jofo.12122.
https://doi.org/10.1111/jofo.12122...
); thus, the Caatinga may provide a suitable habitat during the region’s rainy season.

Elanoides forficatus

Records from extreme northeastern Brazil are few and sparse, and always involving single individuals. All records from the states of Ceará, Rio Grande do Norte, Pernambuco and Alagoas fall between October and April (Roda & Pereira, 2006Roda, S.A. & Pereira, G.A. 2006. Distribuição recente e conservação das aves de rapina florestais do Centro Pernambuco. Revista Brasileira de Ornitologia, 14(4): 331-344.; Pereira et al., 2014bPereira, G.A.; Rodrigues, P.P.; Leal, S.; Periquito, M.C.; Silva, G.B.M.; Menêzes, M.; Corrêa, G.S.; Sonntag, F.A.; Almeida, A.E.M.N. & Nunes, P.B. 2014b. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil (2). Cotinga, 36: 45-50.; WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
; V. Leandro pers. comm.), but there are records in the nearby state of Piauí almost year-round (WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
). The only documented record for Alagoas is one individual photographed in Japaratinga on 19 October 2018 (WA 3332050; R. Oliveira). We tentatively assume that the subspecies in the state is E. f. yetapa, but it remains to be assessed whether birds that reach the region come from North America (E. f. forficatus) or from other regions (E. f. yetapa) and whether the species is a regular visitor in extreme northeastern Brazil.

Harpagus bidentatus

One specimen collected in Goiana, Pernambuco, in October 1945 (Lamm, 1948Lamm, D.W. 1948. Notes on the birds of the states of Pernambuco and Paraíba, Brazil. The Auk, 65(2): 261-283. https://doi.org/10.2307/4080302.
https://doi.org/10.2307/4080302...
) and two photographs from the Murici Ecological Station in January 2008 (WA 57323; C. Albano) and November 2009 (WA 108070; F. Tavares) are the only documented records in the PCE.

Strix virgata

Seemingly uncommon and local in the PCE (Roda & Pereira, 2006Roda, S.A. & Pereira, G.A. 2006. Distribuição recente e conservação das aves de rapina florestais do Centro Pernambuco. Revista Brasileira de Ornitologia, 14(4): 331-344.; Sagot-Martin et al., 2020Sagot-Martin, F.; Lima, R.D.; Pacheco, J.F.; Irusta, J.B.; Pichorim, M. & Hassett, D.M. 2020. An updated checklist of the birds of Rio Grande do Norte, Brazil, with comments on new, rare, and unconfirmed species. Bulletin of the British Ornithologists’ Club, 140(3): 218-298. https://doi.org/10.25226/bboc.v140i3.2020.a2.
https://doi.org/10.25226/bboc.v140i3.202...
). Reference works, likely based only on records from the state of Maranhão and unaware of the species’ occurrence in the PCE, usually assign the populations throughout northeastern Brazil to the whitish-bellied Amazonian form S. v. superciliaris (König & Weick, 2008König, C. & Weick, F. 2008. Owls of the world. 2ºed. London, Christopher Helm.; Holt et al., 2020Holt, D.W.; Berkley, R.; Deppe, C.; Enríquez, P.L.; Petersen, J.L.; Rangel Salazar, J.L.; Segars, K.P.; Wood, K.L.; Kirwan, G.M.; Marks, J.S. & Boesman, P.F.D. 2020. Mottled Owl (Ciccaba virgata), version 1.0. In: Schulenberg, T.S. Birds of the World. Ithaca, Cornell Lab of Ornithology. https://doi.org/10.2173/bow.motowl.01. Access: 15/03/2022.
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). However, birds in the PCE exhibit a brown belly (e.g., WA 2156248; S. Jones) and thus are best assigned to the Atlantic Forest form S. v. borelliana.

Trogon viridis

Formerly recorded in several sites in the states of Pernambuco and Alagoas (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Farias et al., 2002Farias, G.B.; Brito, M.T. & Pacheco, G.L. 2002. Registros ornitológicos de Pernambuco. Recife, Observadores de Aves de Pernambuco.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.; Minns et al., 2010Minns, J.C.; Buzzetti, D.R.C.; Albano, C.G.; Whittaker, A.; Grosset, A.E. & Parrini, R. 2010. Birds of Brazil. DVD-ROM. Vinhedo, Avis Brasilis Editora.; Pereira et al., 2019bPereira, G.A.; Dantas, S.M.; Periquito, M.C.; Coelho, G.; Harrop, R.; Souza, J.L.; Tenório, A.; Leandro-Silva, V.; Raia, Y. 2019b. Threats to, and conservation of, birds in Mata de Aldeia, north-east Atlantic Forest, Brazil. Cotinga, 41: 12-21.), thus suggesting that the species was once common or at least more widespread in the region. However, it has not been recorded in the PCE for nearly a decade. In the Murici Ecological Station, three were observed between 4 and 5 March 2001, of which one was tape-recorded (ML 128023; C. Marantz pers. comm.), and another was tape-recorded on 11 October 2002 (XC 511851; D. Buzzetti). Despite several ornithologists and birdwatchers conducting field work at this site, Green-backed Trogons have not been recorded there anymore. The last record of this species in the PCE we are aware of is a male photographed in Passo de Camaragibe, Alagoas, on 23 March 2013 (WA 1423861; J. Nogueira).

Trogon collaris eytoni

One female collected in Murici on 11 May 1984 (Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.) is the only record of this species in the PCE. Despite dozens of ornithologists and hundreds of birdwatchers conducting field work in Murici in the last four decades, no new records of the species have been produced, suggesting it may be extinct in the PCE.

Chelidoptera tenebrosa

One specimen supposedly collected in Maceió in 1865 (MCZ 7237) cannot be assigned with certainty to Alagoas (see Introduction), and thus four collected at Usina Sinimbu in February-March 1957 (LACM 26813, 26814, MZUSP 38985 and 38986) are likely the only records of this species in Alagoas. In the PCE, it was also recorded in Mamanguape, Paraíba (Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.).

Monasa nigrifrons

The isolated population in the PCE is known from only four records. One specimen collected at Fazenda Santa Justina on 17 March 1987 (MNRJ 34915; Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.) and another tape-recorded in Pilar on 31 December 1990 (WA 1258860; J.F. Pacheco) are the only records of this species in Alagoas. In nearby Pernambuco, it was recorded at Usina Trapiche (08°32′00″S, 35°12′11″W) on 15 October 2007 (XC 205736; Pereira et al., 2008Pereira, G.A.; Whittaker, A.; Whitney, B.M.; Zimmer, K.J.; Dantas, S.M.; Roda, S.A.; Bevier, L.R.; Coelho, G.; Hoyer, R.C. & Albano, C. 2008. Novos registros de aves para Pernambuco, Brasil, com notas sobre algumas espécies pouco conhecidas no Estado. Revista Brasileira de Ornitologia, 16(1): 47-53.) and at Mata do Estado (07°37′11″S, 35°30′11″W) on 5 February 2012 (XC 322376; M. Braun). The absence of recent records in the region suggests that the species may be locally extinct.

Celeus flavus subflavus

The occurrence of this species in the PCE has sometimes been overlooked in reference works (e.g.,Short, 1982Short, L.L. 1982. Woodpeckers of the world. Greenville, Delaware Museum of Natural History.; Gorman, 2014Gorman, G. 2014. Woodpeckers of the world: The Complete Guide. London, Christopher Helm.). The collection of two individuals at Usina Sinimbu in 1952 (MZUSP 37301 and 37302; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.), another three at this same site in 1957 (MZUSP 38993, LACM 26799 and 26800), one in Coruripe (MNRJ 33860), and two at Fazenda Santa Justina (MNRJ 35716 and 35717), in the 1980s, suggest that this woodpecker was once common in the state’s coastal forests. We are not aware of any records in the PCE since the 1980s and the taxon may therefore be extinct in the PCE.

Amazona rhodocorytha

Three collected at Usina Sinimbu on 7 March 1957 (LACM 26764, MZUSP 38953 and 38954; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.) and one collected from a flock of six in April 1984 (MNRJ 33807) are the only specimens of this threatened parrot in the PCE (Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.). We photographed and tape-recorded four individuals in a forest fragment at Usina Sumaúma, and this tiny population is being monitored since 2017. The species is on the verge of extinction in the PCE.

Myrmotherula snowi

Discovered in Murici (Teixeira & Gonzaga, 1985Teixeira, D.M. & Gonzaga, L.P. 1985. Uma nova subespécie de Myrmotherula unicolor (Ménétries, 1835) (Passeriformes, Formicariidae) do nordeste do Brasil. Boletim do Museu Nacional, 310: 1-15.) and later recorded in three other localities in the state of Pernambuco, the species is currently recorded only in the Murici Ecological Station (Pereira et al., 2014aPereira, G.A.; Dantas, S.D.M.; Silveira, L.F.; Roda, S.A.; Albano, C.; Sonntag, F.A.; Leal, S.; Periquito, M.C.; Malacco, G.B. & Lees, A.C. 2014a. Status of the globally threatened forest birds of northeast Brazil. Papéis Avulsos de Zoologia, 54(14): 177-194. https://doi.org/10.1590/0031-1049.2014.54.14.
https://doi.org/10.1590/0031-1049.2014.5...
), wherein the population is estimated at less than 30 individuals (Gonçalves & Efe, 2022Gonçalves, R.O. & Efe, M.A. 2022. On the reproductive biology of the critically threatened Alagoas Antwren (Myrmotherula snowi). The Wilson Journal of Ornithology, 133(3): 472-476. https://doi.org/10.1676/20-00030.
https://doi.org/10.1676/20-00030...
).

Thamnomanes caesius

Records in several localities, both in lowland and montane forests, in the states of Alagoas (Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Teixeira, 1987Teixeira, D.M. 1987. A new tyrannulet (Phylloscartes) from northeastern Brazil. Bulletin of the British Ornithologists’ Club, 107(1): 37-41.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Minns et al., 2010Minns, J.C.; Buzzetti, D.R.C.; Albano, C.G.; Whittaker, A.; Grosset, A.E. & Parrini, R. 2010. Birds of Brazil. DVD-ROM. Vinhedo, Avis Brasilis Editora.), Pernambuco (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Lyra-Neves et al., 2004Lyra-Neves, R.M.; Azevedo-Júnior, S.M.; Telino-Júnior, W.R. & Larrazábal, M.E.L. 2004. Comunidade de aves da Reserva Estadual de Gurjaú, Pernambuco, Brasil. Revista Brasileira de Zoologia, 21(3): 581-592.) and Paraíba (eBird checklist S55209298 by F. Olmos & S. Roda), suggest that Cinereous Antshrike was once widespread in the PCE. The last known records in the region are tape-recordings from the Murici Ecological Station in 2004 (e.g., XC 521955; D. Buzzetti). Despite several ornithologists and birdwatchers conducting field work at most of these sites, particularly at the latter (e.g.,Gonçalves & Efe, 2022Gonçalves, R.O. & Efe, M.A. 2022. On the reproductive biology of the critically threatened Alagoas Antwren (Myrmotherula snowi). The Wilson Journal of Ornithology, 133(3): 472-476. https://doi.org/10.1676/20-00030.
https://doi.org/10.1676/20-00030...
), no recent records are known. The species is likely extinct in the PCE.

Hypoedaleus guttatus

One individual tape-recorded at the Murici Ecological Station on 28 November 1993 (WA 1299779; Pacheco & Whitney, 1995Pacheco, J.F. & Whitney, B.M. 1995. Range extensions for some birds in northeastern Brazil. Bulletin of the British Ornithologists’ Club, 115(3): 157-163.) is the only record of this species in the PCE. This very vocal and easy-to-detect antshrike is likely extinct in the state.

Drymophila squamata

Unpublished genetic data suggest that the PCE population has diverged from populations south of the São Francisco River (Fazza, 2015Fazza, A.C. 2015. Filogeografia de Dendrocincla turdina e de Drymophila squamata (Aves): subsidiando a reconstrução da história evolutiva de passeriformes da mata Atlântica. PhD thesis. São Paulo, Universidade de São Paulo.). It is probably extinct in the neighboring state of Pernambuco, wherein the last documented record we are aware of is a male tape-recorded in 2008 (WA 1369365; C. Albano). The PCE population of the Scaled Antbird survives only in the Murici Ecological Station. Ornithologists that surveyed the region between the 1980s and early 2000s reported that the species was very common (Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.; eBird checklist S64422055 by T. Schulenberg; C. Marantz pers. comm.), but now it seems to be almost as scarce as Myrmotherula snowi, with only 22 birds captured during more than ten years of mist netting at the Murici Ecological Station (October 2010 - March 2021). The PCE population probably deserves conservation concern.

Chamaeza campanisona

Disjunctly distributed across much of South America (Ridgely & Tudor, 2009Ridgely, R.S. & Tudor, G. 2009. Field guide to the songbirds of South America: the passerines. Austin, University of Texas Press.), the Short-tailed Antthrush has an isolated population in the Pedra Talhada Biological Reserve, where it is seemingly common (Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.; Studer, 2015Studer, A. 2015. Aves da Reserva Biológica de Pedra Talhada. In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 377-405.; Studer et al., 2018Studer, A.; Silva, M.C. & Goyena, B.B. 2018. The breeding biology and nest success of the Short-tailed Antthrush Chamaeza campanisona (Aves: Formicariidae) in the Atlantic rainforest of northeastern Brazil. Zoologia, 35: 1-8. https://doi.org/10.3897/zoologia.35.e12906.
https://doi.org/10.3897/zoologia.35.e129...
).

Sclerurus macconnelli bahiae

One collected at Usina Sinimbu on 28 February 1957 (MZUSP 39040; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.; Fig. 6) is the only documented record, and perhaps the only record at all, of this leaftosser in the PCE. Undocumented records in northern Pernambuco (Roda, 2002Roda, S.A. 2002. Aves endêmicas e ameaçadas de extinção no estado de Pernambuco. In: Tabarelli, M. & Silva, J.M.C. Diagnóstico da biodiversidade de Pernambuco. Recife, Secretaria da Ciência, Tecnologia e Meio Ambiente, Editora Massangana. p. 537-556.; Roda & Carlos, 2004Roda, S.A. & Carlos, C.J. 2004. Composição e sensitividade da avifauna dos brejos de altitude do estado de Pernambuco. In: Pôrto, K.; Cabral, J. & Tabarelli, M. Brejos de altitude: história natural, ecologia e conservação. Brasília, Ministério do Meio Ambiente. p. 211-228.; Pereira, 2009aPereira, G.A. 2009a. Aves da Mata do Estado, São Vicente Férrer, Pernambuco, Brasil. Recife, Centro de Pesquisas Ambientais do Nordeste. (Relatório Técnico)., bPereira, G.A. 2009b. Aves do Engenho Água Azul, Timbaúba, Pernambuco, Brasil. Recife, Centro de Pesquisas Ambientais do Nordeste. (Relatório Técnico).) are only mentions on species lists and lack evidence to be credible.

Figure 6
Tawny-throated Leaftosser, MZUSP 39040, collected at Usina Sinimbu, Alagoas, on 28 February 1957 (© Rafael D. Lima).

Sclerurus caudacutus caligineus

Historically known from only two or three localities in the PCE, S. c. caligineus is on the brink of extinction (CEMAVE, 2018Centro Nacional de Pesquisa e Conservação das Aves Silvestres (CEMAVE). 2018. Sclerurus caudacutus caligineus Pinto, 1954. In: Instituto Chico Mendes de Conservação da Biodiversidade. Livro Vermelho da Fauna Brasileira Ameaçada de Extinção : Volume III - Aves. Brasília, ICMBio. p. 402-403.). Three specimens, including the holotype, were collected in 1952 (MZUSP 36415, 37367 and 37368; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.), and another three in 1957 (MZUSP 39041, LACM 26867 and 26868), at Usina Sinimbu. Another was collected in São Miguel dos Campos (MNRJ 32033) and three at the Murici Ecological Station (MNRJ 32034, 32035 and 34537) in the 1980s. The lowland forests of Usina Sinimbu and São Miguel dos Campos were entirely transformed into sugar cane plantations and S. c. caligineus has currently been recorded only at the Murici Ecological Station, where it is very rare; during more than ten years of mist netting, only one individual was captured there in January 2017.

Dendrocolaptes medius

Records from four different sites in the lowland rainforests of Pernambuco and Alagoas suggest that this woodcreeper was relatively more widespread in the PCE until the 1950s. One specimen was collected in Igarassu, Pernambuco, in 1945 (MNRJ 24788; Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.), two in São Miguel dos Campos in 1951 (MZUSP 37307 and 37308; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.), two in Rio Largo in 1951 (MZUSP 37309 and 37310; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.), and two at Usina Sinimbu in 1957 (MZUSP 38999 and LACM 26865). Once the region’s lowland forests have been virtually decimated, the species is currently known from only one site, the Murici Ecological Station, where it is seemingly very rare and may be close to extinction.

Campylorhamphus trochilirostris

The state of Alagoas seems to harbor (or has once harbored) two distinct forms of the Campylorhamphus trochilirostris complex, which, as currently delimited (Marantz et al., 2003Marantz, C.A.; Aleixo, A.; Bevier, L.R. & Patten, M.A. 2003. In: del Hoyo, J.; Elliott, A. & Christie, D.A. Handbook of the Birds of the World . Volume 8: Broadbills to Tapaculos. Barcelona, Lynx Edicions. p. 358-447.), is polyphyletic (Portes, 2014Portes, C.E.B. 2014. Sistemática, filogenia e biogeografia do gênero Campylorhamphus (Aves: Dendrocolaptidae). PhD thesis. Belém, Universidade Federal do Pará.; Harvey et al., 2020Harvey, M.G.; Bravo, G.A.; Claramunt, S.; Cuervo, A.M.; Derryberry, G.E.; Battilana, J.; Seeholzer, G.F.; McKay, J.S.; O’Meara, B.C.; Faircloth, B.C.; Edwards, S.V.; Pérez-Emán, J.; Moyle, R.G.; Sheldon, F.H.; Aleixo, A.; Smith, B.T.; Chesser, R.T.; Silveira, L.F.; Cracraft, J.; Brumfield, R.T. & Derryberry, E.P. 2020. The evolution of a tropical biodiversity hotspot. Science, 370(6522): 1343-1348. https://doi.org/10.1126/science.aaz6970.
https://doi.org/10.1126/science.aaz6970...
) and includes vocally distinct populations (RDL pers. obs.). A specimen collected at Fazenda Canoas on 12 October 1951 (MZUSP 37334) is morphologically much closer to birds from the lowland forests of eastern Bahia (C. t. trochilirostris) than to birds from the South American dry diagonal (C. t. major) and thus likely pertains to the nominate form (Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Fig. 7). Another specimen, collected at Sítio Cajaíba on 22 November 2009 (MZUSP 84517), and all other records in the state (e.g., WA 1357337; P. Têia) are identical to birds from the South American dry diagonal and thus are best assigned to C. t. major. Interestingly, a specimen from Jaqueira, Pernambuco (FMNH 392474), grouped phylogenetically with birds from the South American dry diagonal (C. t. major) rather than with birds from eastern Bahia (C. t. trochilirostris) in an unpublished molecular phylogeny of the genus Campylorhamphus (Portes, 2014Portes, C.E.B. 2014. Sistemática, filogenia e biogeografia do gênero Campylorhamphus (Aves: Dendrocolaptidae). PhD thesis. Belém, Universidade Federal do Pará.). This indicates that both forms occur in the PCE, being the nominate likely restricted to the lowlands and C. t. major a peripheral inhabitant of the interior forests. A specimen from Murici (MNRJ 34523) has never been examined and is of unknown identity.

Figure 7
From left to right: Campylorhamphus trochilirostris trochilirostris from Igrapiúna, Bahia (MZUSP 91432), Rio Jucurucu, Bahia (MZUSP 14183), and Fazenda Canoas, Alagoas (MZUSP 37334); and Campylorhamphus trochilirostris major from Pacoti, Ceará (MZUSP 33262), and Sítio Cajaíba, Alagoas (MZUSP 84517) (© Rafael D. Lima).

Synallaxis hypospodia

Although some reference works mention the species’ occurrence in Alagoas (e.g.,Sick, 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.), specific records from the state have never been reported in the primary literature. One specimen collected at Usina Sinimbu on 12 March 1957 (LACM 26877; Fig. 8) is the first state record, which has never been reported in the literature possibly because the specimen was confused in the field with another regionally commoner Synallaxis spinetail. The species was later tape-recorded at Fazenda Riachão on 22 April 1985 (FNJV 8568; J. Vielliard), 18 May 1988 (FNJV 9236; J. Vielliard) and 23 May 1988 (FNJV 10033; J. Vielliard), and at Fazenda Serra Nova on 13 October 1987 (ML 272328; T. Schulenberg), and collected at Fazenda Riachão (MNRJ 34974), Grota do Uruçú (MNRJ 34975), São Miguel dos Campos (MNRJ 34533) and Maceió (MNRJ 36347) in the 1980s. In the PCE, the species is also known from nearby Pernambuco (e.g.,Farias et al., 2002Farias, G.B.; Brito, M.T. & Pacheco, G.L. 2002. Registros ornitológicos de Pernambuco. Recife, Observadores de Aves de Pernambuco.; WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
).

Figure 8
Cinereous-breasted Spinetail, LACM 26877, collected at Usina Sinimbu, Alagoas, on 12 March 1957 (© Kimball L. Garrett).

Carpornis melanocephala

An isolated population in the PCE is known only from the Murici Ecological Station, where one specimen was collected in 1983 (MNRJ 33904; Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.) and many individuals have been photographed and tape-recorded until today. The size of this population, however, is unknown.

Procnias nudicollis

Records of this species in the states of Paraíba (Zenaide, 1953Zenaide, H. 1953. Aves da Paraíba. João Pessoa, Editora Teone.), Pernambuco (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.) and Alagoas (Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.; Roda & Carlos, 2003Roda, S.A. & Carlos, C.J. 2003. New records for some poorly know birds of the Atlantic Forest of northeastern Brazil. Cotinga, 20: 17-20.) suggest that it was once widespread within the PCE. In Alagoas, three specimens were collected at the Murici Ecological Station in 1984 (MNRJ 33906-33908), where the species seemed to be common (Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.). No recent records are known in the PCE.

Tityra inquisitor

Two specimens collected at Engenho Coimbra on 15 July 2000 (UFPE 3218 and FMNH 427127, the former reported by Roda & Carlos, 2003Roda, S.A. & Carlos, C.J. 2003. New records for some poorly know birds of the Atlantic Forest of northeastern Brazil. Cotinga, 20: 17-20.) are the only records of this species in the PCE.

Oxyruncus cristatus

An isolated population in the PCE is known from only four sites: Murici Ecological Station (Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.), Engenho Coimbra (Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.), Pedra Talhada Biological Reserve (Pereira et al., 2008Pereira, G.A.; Whittaker, A.; Whitney, B.M.; Zimmer, K.J.; Dantas, S.M.; Roda, S.A.; Bevier, L.R.; Coelho, G.; Hoyer, R.C. & Albano, C. 2008. Novos registros de aves para Pernambuco, Brasil, com notas sobre algumas espécies pouco conhecidas no Estado. Revista Brasileira de Ornitologia, 16(1): 47-53.; Studer et al., 2015Studer, A.; Leal, S.; Lévêque, R.; Bassin, A.; Laesser, J.; Buzzetti, D. & Sousa, M.C. 2015. Inventário da Reserva Biológica de Pedra Talhada, XXIII (Aves). In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 723-747.) and Mata de Maria Maior (Pereira et al., 2008Pereira, G.A.; Whittaker, A.; Whitney, B.M.; Zimmer, K.J.; Dantas, S.M.; Roda, S.A.; Bevier, L.R.; Coelho, G.; Hoyer, R.C. & Albano, C. 2008. Novos registros de aves para Pernambuco, Brasil, com notas sobre algumas espécies pouco conhecidas no Estado. Revista Brasileira de Ornitologia, 16(1): 47-53.), the latter in Pernambuco.

Piprites chloris

An isolated population in the PCE has previously been reported from the state of Pernambuco (Roda & Dantas, 2008Roda, S.A. & Dantas, S.M. 2008. The first two records of Wing-barred Piprites, Piprites chloris, in the Pernambuco Center of Endemism. Revista Brasileira de Ornitologia, 16(3): 271-273.; Pereira et al., 2012Pereira, G.A.; Lobo-Araújo, L.W.; Leal, S.; Medcraft, J.P.; Marantz, C.A.; Toledo, M.T.F.; Araujo, H.F.P.; Albano, C.; Pinto, T.; Santos, C.H.A.; Serapião, L.C.H.; Silva, G.B.M. & Pioli, D. 2012. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil. Cotinga, 34: 17-22.). Recent photographic records in Passo de Camaragibe (WA 1624207; J. Nogueira) and São Miguel dos Milagres (WA 2397244; E. Ramirez) and one specimen collected in Passo de Camaragibe (MZUSP 107491) are the first records for Alagoas, thus extending the known range of the PCE population.

Platyrinchus leucoryphus

This Atlantic Forest endemic is known to occur from Paraguay to southern Bahia, Brazil (Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Gabriel & Silva-Filho, 2011Gabriel, V.A. & Silva-Filho, J.D. 2011. Aves, Tyrannidae, Platyrinchus leucoryphus Wied, 1931: distribution extension in Brazil. Check List, 7(6): 868-870. https://doi.org/10.15560/7.6.868.
https://doi.org/10.15560/7.6.868...
). One individual mist-netted and collected at the Murici Ecological Station on 10 October 2010 (MHNAL 356; Fig. 9) constitutes the northernmost record by approximately 840 km and the only one in the PCE. No species of the genus Platyrinchus is known to undertake migratory movements, therefore we assume that a population had gone unnoticed in the PCE until then. Because it has never been recorded again in the PCE, this single record may have been the first and the last of this putative PCE population (as with Hypoedaleus guttatus). The collected specimen was compared with the series housed at MZUSP and no clear plumage of morphometric differences were found.

Figure 9
Russet-winged Spadebill mist-netted at the Murici Ecological Station on 10 October 2010 (© LABECAN/UFAL).

Corythopis delalandi

This flycatcher was tape-recorded twice at the Murici Ecological Station, on 22 March 1998 and 29 January 2000 (Minns et al., 2010Minns, J.C.; Buzzetti, D.R.C.; Albano, C.G.; Whittaker, A.; Grosset, A.E. & Parrini, R. 2010. Birds of Brazil. DVD-ROM. Vinhedo, Avis Brasilis Editora.), and since then it has never been recorded again in the PCE. These records in Alagoas represent a considerable extension of the species’ range depicted in reference works (Ridgely & Tudor, 2009Ridgely, R.S. & Tudor, G. 2009. Field guide to the songbirds of South America: the passerines. Austin, University of Texas Press.; Fitzpatrick, 2020Fitzpatrick, J.W. 2020. Southern Antpipit (Corythopis delalandi), version 1.0. In: Schulenberg, T.S. Birds of the World. Ithaca, Cornell Lab of Ornithology. https://doi.org/10.2173/bow.souant1.01. Access: 15/03/2022.
https://doi.org/10.2173/bow.souant1.01...
). The species is often common where it occurs, thus its current absence in the PCE may suggest that it is extinct in the region.

Pseudocolopteryx sclateri

This marsh-dwelling flycatcher has a remarkable patchy distribution across much of South America (Ridgely & Tudor, 2009Ridgely, R.S. & Tudor, G. 2009. Field guide to the songbirds of South America: the passerines. Austin, University of Texas Press.). In northeastern Brazil, it was known only from southeastern Bahia (Pinto, 1944Pinto, O.M.O.. 1944. Catálogo das Aves do Brasil e Lista dos Exemplares na Coleção do Departamento de Zoologia. 2ª parte, Ordem Passeriformes (continuação): Superfamília Tyrannoidea e Subordem Passeres. São Paulo, Departamento de Zoologia.; Sick, 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.). One recently photographed at the Marituba do Peixe Protected Area on 16 May 2020 (ML 236683251; E. Vieira) is the only record of the species in the PCE. Curiously, unpublished data had already suggested habitat suitability for this species precisely in the region of this record (Jordan, 2018Jordan, E.A. 2018. Filogenia, biogeografía y evolución del comportamiento en los Doraditos (Pseudocolopteryx: Tyrannidae: Aves). PhD thesis. La Plata, Facultad de Ciencias Naturales & Museo Universidad Nacional de La Plata.).

Campylorhynchus turdinus

Two pairs tape-recorded at the Murici Ecological Station on 2 March 2001 (ML 128007 at 39-48 seconds), and one individual seen at the same site on 4 March 2001 (C. Marantz pers. comm.), are the only records in the PCE and are being reported for the first time here. No records have been produced since then, suggesting this conspicuous species may be extinct in the region.

Turdus fumigatus

Four specimens collected at Fazenda Santa Justina on 16 March 1987 (MNRJ 34926-34929; Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.) are the only documented records in Alagoas. The species was reported to be extremely sought by bird trappers in Murici and was often found in local markets in Maceió during the 1980 and early 1990s (Fernando Pinto pers. comm.). Undocumented records at Mata do Cedro (Campos et al., 2018Campos, L.F.A.S.; Teixeira, B.P. & Efe, M.A. 2018. The importance of isolated patches for maintaining local bird biodiversity and ecosystem function: a case study from the Pernambuco Center of Endemism, Northeast Brazil. Iheringia, 108: e2018021. https://doi.org/10.1590/1678-4766e2018021.
https://doi.org/10.1590/1678-4766e201802...
) are possibly misidentifications.

Turdus albicollis

Usually considered to be sedentary, this species was not included in a recent review of migratory birds in Brazil (Somenzari et al., 2018Somenzari, M.; Amara, P.P.; Cueto, V.R.; Guaraldo, A.C.; Jahn, A.E.; Lima, D.M.; Lima, P.C.; Lugarini, C.; Machado, C.G.; Martinez, J.; Nascimento, J.L.X.; Pacheco, J.F.; Paludo, D.; Prestes, N.P.; Serafini, P.P.; Silveira, L.F. ; Sousa, A.E.B.A.; Sousa, N.A.; Souza, M.A.; Telino-Júnior, W.R. & Whitney, B.M. 2018. An overview of migratory birds in Brazil. Papéis Avulsos de Zoologia, 58(3): 1-66. https://doi.org/10.11606/1807-0205/2018.58.03.
https://doi.org/10.11606/1807-0205/2018....
). However, almost all records in the PCE fall between October and April (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.; Minns et al., 2010Minns, J.C.; Buzzetti, D.R.C.; Albano, C.G.; Whittaker, A.; Grosset, A.E. & Parrini, R. 2010. Birds of Brazil. DVD-ROM. Vinhedo, Avis Brasilis Editora.; and several sound recordings on ASEC, FNJV, ML and XC), suggesting that the species is likely a migrant in the region. The only exception to this putative pattern of seasonality we are aware of is one specimen collected at Engenho Coimbra on 29 July 2000 (FMNH 427206). It has also been recorded at the Pedra Talhada Biological Reserve (Studer et al., 2015Studer, A.; Leal, S.; Lévêque, R.; Bassin, A.; Laesser, J.; Buzzetti, D. & Sousa, M.C. 2015. Inventário da Reserva Biológica de Pedra Talhada, XXIII (Aves). In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 723-747.), but no date information is available.

Cacicus haemorrhous

The collection of seven red-rumped caciques between 1951 and 1952 (MZUSP 37684-37690; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.), and another eleven in 1957 (MZUSP 39265-39269; LACM 27141, 27142, 27164-27167), at the coastal forests of Alagoas suggest that the species was once common in the state. It was also collected in nearby Pernambuco in 1880 (NHMUK 1885.11.2.114 and 1885.11.2.115; W. Forbes), 1903 (NHMUK 1903.12.15.62 and 1903.12.15.63; A. Robert) and 1927 (AMNH 245727, 245728, 245748-245751; E. Kaempfer). Although the species was once common in the PCE (Teixeira, 1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149.), it has currently been recorded only in the vicinity of the Murici Ecological Station (e.g., WA 4222775; C. Almeida) and may be close to local extinction.

Anumara forbesi

The great morphological similarity of this species and the more widespread Chopi Blackbird Gnorimopsar chopi has been a source of confusion and misidentified records since its discovery (Short & Parkes, 1979Short, L.L. & Parkes, K.C. 1979. The status of Agelaius forbesi Sclater. The Auk, 96(1): 179-183. https://doi.org/10.1093/auk/96.1.179.
https://doi.org/10.1093/auk/96.1.179...
; Studer & Vielliard, 1988Studer, A. & Vielliard, J. 1988. Premières données étho-écologiques sur l’Ictéridé brésilien Curaeus forbesi (Sclater, 1886) (Aves, Passeriformes). Revue Suisse de Zoologie, 95(4): 1063-1077.; Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.). The Forbes’s Blackbird was long known only from the holotype in the British Museum at Tring, until Short & Parkes (1979Short, L.L. & Parkes, K.C. 1979. The status of Agelaius forbesi Sclater. The Auk, 96(1): 179-183. https://doi.org/10.1093/auk/96.1.179.
https://doi.org/10.1093/auk/96.1.179...
) discovered several misidentified museum specimens of the species. They found that some specimens collected in Alagoas, in the expedition carried out by the MZUSP in partnership with the LACM between 1957 and 1958, had been misidentified as G. chopi.Short & Parkes (1979Short, L.L. & Parkes, K.C. 1979. The status of Agelaius forbesi Sclater. The Auk, 96(1): 179-183. https://doi.org/10.1093/auk/96.1.179.
https://doi.org/10.1093/auk/96.1.179...
), however, examined only those specimens deposited at the LACM, and not those at MZUSP, which remained misidentified and had their identification corrected later by Collar et al. (1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.). Thus, all specimens collected in Alagoas between 1951 and 1957 and formerly identified as G. chopi (Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.: 92; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.: 273) are in fact A. forbesi (MZUSP 37714, 39281-39290; LACM 27134-27140).

Habia rubica

Formerly known from at least ten sites in the PCE (Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.; Lamm, 1948Lamm, D.W. 1948. Notes on the birds of the states of Pernambuco and Paraíba, Brazil. The Auk, 65(2): 261-283. https://doi.org/10.2307/4080302.
https://doi.org/10.2307/4080302...
; Pinto, 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Minns et al., 2010Minns, J.C.; Buzzetti, D.R.C.; Albano, C.G.; Whittaker, A.; Grosset, A.E. & Parrini, R. 2010. Birds of Brazil. DVD-ROM. Vinhedo, Avis Brasilis Editora.), the species was until recently regarded as extinct in the region due to the absence of records between 2007 and 2018. However, it has recently been rediscovered at the Murici Ecological Station, Alagoas (ML 133034621; A. Andrade), and at Fazenda Morim (08°52′04″S, 35°12′31″W), Pernambuco (WA 4563059; S. Jones).

Tersina viridis

A few hundred photographic records on WikiAves from the Brazilian states of Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe and Bahia fall between March and August (WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
), suggesting that the species is a seasonal visitor in northeastern Brazil. Literature records from this region are scarce, but generally corroborate this pattern (e.g.,Dantas et al., 2007Dantas, S.M.; Pereira, G.A.; Farias, G.B.; Brito, M.T.; Periquito, M.C.; Pacheco, G.L. & Vasconcelos, E.S.T. 2007. Registros relevantes de aves para o estado de Pernambuco, Brasil. Revista Brasileira de Ornitologia, 15(1): 113-115.; Pereira et al., 2012Pereira, G.A.; Lobo-Araújo, L.W.; Leal, S.; Medcraft, J.P.; Marantz, C.A.; Toledo, M.T.F.; Araujo, H.F.P.; Albano, C.; Pinto, T.; Santos, C.H.A.; Serapião, L.C.H.; Silva, G.B.M. & Pioli, D. 2012. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil. Cotinga, 34: 17-22.; Silva et al., 2012Silva, M.; França, B.R.A.; Irusta, J.B.; Souto, G.H.B.O.; Oliveira-Júnior, T.M.; Rodrigues, M.C. & Pichorim, M. 2012. Aves de treze áreas de caatinga no Rio Grande do Norte, Brasil. Revista Brasileira de Ornitologia, 20(3): 312-328.; Somenzari et al., 2018Somenzari, M.; Amara, P.P.; Cueto, V.R.; Guaraldo, A.C.; Jahn, A.E.; Lima, D.M.; Lima, P.C.; Lugarini, C.; Machado, C.G.; Martinez, J.; Nascimento, J.L.X.; Pacheco, J.F.; Paludo, D.; Prestes, N.P.; Serafini, P.P.; Silveira, L.F. ; Sousa, A.E.B.A.; Sousa, N.A.; Souza, M.A.; Telino-Júnior, W.R. & Whitney, B.M. 2018. An overview of migratory birds in Brazil. Papéis Avulsos de Zoologia, 58(3): 1-66. https://doi.org/10.11606/1807-0205/2018.58.03.
https://doi.org/10.11606/1807-0205/2018....
). The seemingly complex migratory movements of the Swallow Tanager are little known (Somenzari et al., 2018Somenzari, M.; Amara, P.P.; Cueto, V.R.; Guaraldo, A.C.; Jahn, A.E.; Lima, D.M.; Lima, P.C.; Lugarini, C.; Machado, C.G.; Martinez, J.; Nascimento, J.L.X.; Pacheco, J.F.; Paludo, D.; Prestes, N.P.; Serafini, P.P.; Silveira, L.F. ; Sousa, A.E.B.A.; Sousa, N.A.; Souza, M.A.; Telino-Júnior, W.R. & Whitney, B.M. 2018. An overview of migratory birds in Brazil. Papéis Avulsos de Zoologia, 58(3): 1-66. https://doi.org/10.11606/1807-0205/2018.58.03.
https://doi.org/10.11606/1807-0205/2018....
) and thus further study, especially with tracking technologies such as geolocators, is warranted.

Cissopis leverianus

One specimen collected at the Saltinho Biological Reserve, Pernambuco, on 19 September 1979 (UFPE 863) and three collected in Matriz de Camaragibe, Alagoas, in the 1980s (MNRJ 34562, 35118 and MNA695) are the only documented records of this species in the PCE. More recent records in the PCE are all undocumented and are more than ten years old (Farias et al., 2002Farias, G.B.; Brito, M.T. & Pacheco, G.L. 2002. Registros ornitológicos de Pernambuco. Recife, Observadores de Aves de Pernambuco.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Lyra-Neves et al., 2004Lyra-Neves, R.M.; Azevedo-Júnior, S.M.; Telino-Júnior, W.R. & Larrazábal, M.E.L. 2004. Comunidade de aves da Reserva Estadual de Gurjaú, Pernambuco, Brasil. Revista Brasileira de Zoologia, 21(3): 581-592.; Dantas et al., 2007Dantas, S.M.; Pereira, G.A.; Farias, G.B.; Brito, M.T.; Periquito, M.C.; Pacheco, G.L. & Vasconcelos, E.S.T. 2007. Registros relevantes de aves para o estado de Pernambuco, Brasil. Revista Brasileira de Ornitologia, 15(1): 113-115.; Rodrigues et al., 2007Rodrigues, R.C.; Araujo, H.F.P.; Lyra-Neves, R.M.; Telino-Júnior, W.R. & Botelho, C.N. 2007. Caracterização da avifauna na Área de Proteção Ambiental de Guadalupe, Pernambuco. Ornithologia, 2(1): 47-61.; Pereira, 2009cPereira, G.A. 2009c. Aves da Fazenda Morim, São José da Coroa Grande, Pernambuco, Brasil. Recife, Centro de Pesquisas Ambientais do Nordeste. (Relatório Técnico).) thus suggesting that the species, as many others, may be regionally extinct. Interestingly, Teixeira et al. (1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157.) identified one specimen from Matriz de Camaragibe as being of the white-backed Amazonian subspecies C. l. leverianus. However, the specimen from the Saltinho Biological Reserve (examined only through photographs) seems to be of the black-backed subspecies (C. l. major). A comprehensive study is needed to assess the taxonomic validity and geographic distribution of C. l. leverianus and C. l. major.

Species on the secondary list

Crypturellus zabele

Recorded at the Piaçabuçu Protected Area (Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; ICMBio, 2010Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio). 2010. Plano de Manejo da Área de Proteção Ambiental de Piaçabuçu. Brasília, Ministério do Meio Ambiente.). Despite the lack of documentary evidence, we consider this record to be valid because there are documented records less than 80 km away in the neighboring state of Sergipe (e.g., WA 3982455; L.D. Barros), and others north of the São Francisco River in the states of Paraíba (WA 1281651; M. Holderbaum) and Rio Grande do Norte (Sagot-Martin et al., 2020Sagot-Martin, F.; Lima, R.D.; Pacheco, J.F.; Irusta, J.B.; Pichorim, M. & Hassett, D.M. 2020. An updated checklist of the birds of Rio Grande do Norte, Brazil, with comments on new, rare, and unconfirmed species. Bulletin of the British Ornithologists’ Club, 140(3): 218-298. https://doi.org/10.25226/bboc.v140i3.2020.a2.
https://doi.org/10.25226/bboc.v140i3.202...
), suggesting that this species’ occurrence in the region is not unlikely.

Crax cf. fasciolata

Independent anecdotal evidence convincingly indicates that a curassow of the genus Crax occurred in the PCE until the 20th century (Pinto, 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334.; Teixeira et al., 1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157.; Teixeira, 1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149.; Lees & Pimm, 2015Lees, A.C. & Pimm S.L. 2015. Species, extinct before we know them? Current Biology, 25(5): R177-R180. https://doi.org/10.1016/j.cub.2014.12.017.
https://doi.org/10.1016/j.cub.2014.12.01...
). The species was painted, supposedly based on birds from the PCE, during the 17th century in the then Dutch-controlled northeastern Brazil (see Marcgrave, 1648Marcgrave, G. 1648. Historia Naturalis Brasiliae. Amsterdam, Lungdunum Batavorum.: 195; Teixeira, 2009Teixeira, D.M. 2009. Os quadros de aves tropicais do Castelo de Hoflössnitz na Saxônia e Albert Eckhout (ca. 1610-1666), artista do Brasil Holandês. Revista do Instituto de Estudos Brasileiros, 49: 67-141. https://doi.org/10.11606/issn.2316-901X.v0i49p67-90.
https://doi.org/10.11606/issn.2316-901X....
: 117; reviewed by Teixeira, 1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149.). Later, oral testimonies from multiple old hunters in coastal Alagoas also indicated the past occurrence of “a curassow other than Pauxi mitu” (Pinto, 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334.) or “a yellow-billed curassow” (Teixeira, 1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149.) in the region. Thus, both paintings of birds putatively from the PCE and multiple oral testimonies from hunters suggest the historic existence of a curassow of the genus Crax in the PCE. As speculated by other authors (Pinto, 1946Pinto, O.M.O.. 1946. Comentários sôbre as Aves descritas na Historia Naturalis Brasiliae de Jorge Marcgrave. São Paulo, Departamento de Zoologia da Secretaria da Agricultura, Indústria e Comércio de São Paulo., 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334.; Teixeira, 1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149.), it is possible that the PCE population of this curassow was related to C. f. pinima from eastern Amazonia. Such a distributional pattern makes sense from a biogeographical perspective because it matches the pattern of other bird lineages with an isolated population in the PCE and a sister population in eastern Amazonia, including Xenops minutus (Burney, 2009Burney, C.W. 2009. Comparative phylogeography of Neotropical birds. PhD thesis. Baton Rouge, Louisiana State University.), Thamnophilus aethiops (Thom & Aleixo, 2015Thom, G. & Aleixo, A. 2015. Cryptic speciation in the white-shouldered antshrike (Thamnophilus aethiops, Aves-Thamnophilidae): The tale of a transcontinental radiation across rivers in lowland Amazonia and the northeastern Atlantic Forest. Molecular Phylogenetics and Evolution, 82: 95-110. https://doi.org/10.1016/j.ympev.2014.09.023.
https://doi.org/10.1016/j.ympev.2014.09....
), Cercomacroides laeta and Dendrocolaptes medius.

Streptoprocne zonaris

Listed for the Pedra Talhada Biological Reserve without any details about specific records (Studer et al., 2015Studer, A.; Leal, S.; Lévêque, R.; Bassin, A.; Laesser, J.; Buzzetti, D. & Sousa, M.C. 2015. Inventário da Reserva Biológica de Pedra Talhada, XXIII (Aves). In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 723-747.). It is worth mentioning the possibility of confusion with S. biscutata, but because both species are not unlikely to occur in the state, we tentatively accept the authors’ identification. Further records are needed to determine which (if any) Streptoprocne swift occurs in the state.

Heliactin bilophus

Mentioned for the state in some reference works without any reference to specific records (Sick, 1985Sick, H. 1985. Ornitologia brasileira . Volume I. Brasília, Editora Universidade de Brasília., 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.; Schuchmann, 1999Schuchmann, K.L. 1999. Family Trochilidae. In: del Hoyo, J.; Elliott, A. & Christie, D.A. Handbook of the Birds of the World. Volume 5: Barn-owls to hummingbirds. Barcelona, Lynx Edicions. p. 468-680.). Alagoas is the only state within the PCE that has no documented records for this species. There are records in nearby Pernambuco, less than 20 km distant from Alagoas, in habitats that are widely available in the state, so we consider that it may be just a matter of time for a record to be produced in the state.

Discosura longicaudus

Recorded at the Murici Ecological Station (Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.). Despite the lack of documentary evidence, we consider this record to be valid according to the species’ distributional pattern; it has several documented records in nearby Pernambuco, both in coastal (e.g.,Berla, 1946Berla, H.F. 1946. Lista de aves coletadas em Pernambuco, com descrição de uma subespécie nova, de um alótipo fêmea e notas de campo. Boletim do Museu Nacional, 65: 1-35.) and highland forests (e.g., WA 2528338; S. Jones).

Haematopus palliatus

One individual was observed at Lagoa do Mundaú on 26 April 1987 (Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.) and the species was later listed as a resident at the Piaçabuçu Protected Area (Cabral et al., 2006Cabral, S.A.S.; Azevedo-Júnior, S.M. & Larrazábal, M.A. 2006. Levantamento das aves da Área de Proteção Ambiental de Piaçabuçu, no litoral de Alagoas, Brasil. Ornithologia, 1(2): 161-167.). These are the only records for the state of Alagoas.

Calidris canutus

Singles and small flocks in winter plumage have been recorded at the Piaçabuçu Protected Area (MAE pers. obs.), but no documentary evidence of these record was produced.

Stercorarius antarcticus

One individual banded as a nestling in King George Island on 17 January 1988 was recovered in Maceió on 6 November 1988 (Olmos, 2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.). Because no documentary evidence of this record was produced, the species is included in our secondary list.

Sternula antillarum

One individual banded in Florida, USA, on 23 May 1970 and another banded in Massachusetts on 2 July 1988 were recovered in southern Alagoas on 10 January 1992 (Olmos, 2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.). The species was also recorded at the Piaçabuçu Protected Area (Cabral et al., 2006Cabral, S.A.S.; Azevedo-Júnior, S.M. & Larrazábal, M.A. 2006. Levantamento das aves da Área de Proteção Ambiental de Piaçabuçu, no litoral de Alagoas, Brasil. Ornithologia, 1(2): 161-167.). There is no documentary evidence for these records, however, and thus the species is on our secondary list.

Thalassarche melanophris

Among several banded as nestlings in the Falkland Islands between 1961 and 1963, one was recovered a few years later in Maceió (Sick, 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.; Olmos, 2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.; Sousa et al., 2005Sousa, M.C.; Fraga, R.T. & Carlos, C.J. 2005. Seabird records from Alagoas and Sergipe states, north-east Brazil. Cotinga, 24: 112-114.).

Ardeola ralloides

One individual observed at Barra de Santo Antônio on 17 October 2017 (MAE pers. obs.) is the only state record. This record adds to the growing number of records of this Old World heron in mainland northeastern Brazil and suggests that it is colonizing the New World, as predicted by Davis (2010Davis, B.J.W. 2010. Squacco Heron Ardeolla ralloides in the Fernando de Noronha Archipelago: the fourth Brazilian record with comments on the prospects for a colonisation event. Revista Brasileira de Ornitologia, 18(1): 61-63.) and Whittaker et al. (2019Whittaker, A.; Silva, J.P.F.; Lucio, B. & Kirwan, G.M. 2019. Old World vagrants on Fernando de Noronha, including two additions to the Brazilian avifauna, and predictions for potential future Palearctic vagrants. Bulletin of the British Ornithologists’ Club, 139(3): 189-204. https://doi.org/10.25226/bboc.v139i3.2019.a2.
https://doi.org/10.25226/bboc.v139i3.201...
). The species was first reported in South America on Fernando de Noronha Island in June 1986, when a single adult was seen (Teixeira et al., 1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157.). Between November and December 2004, several birds were recorded again on the island (Silva e Silva & Olmos, 2006Silva e Silva, R. & Olmos, F. 2006. Noteworthy bird records from Fernando de Noronha, northeastern Brazil. Revista Brasileira de Ornitologia, 14: 470-474.) and now a self-sustaining population seems to have become established therein (Davis, 2010Davis, B.J.W. 2010. Squacco Heron Ardeolla ralloides in the Fernando de Noronha Archipelago: the fourth Brazilian record with comments on the prospects for a colonisation event. Revista Brasileira de Ornitologia, 18(1): 61-63.; Whittaker et al., 2019Whittaker, A.; Silva, J.P.F.; Lucio, B. & Kirwan, G.M. 2019. Old World vagrants on Fernando de Noronha, including two additions to the Brazilian avifauna, and predictions for potential future Palearctic vagrants. Bulletin of the British Ornithologists’ Club, 139(3): 189-204. https://doi.org/10.25226/bboc.v139i3.2019.a2.
https://doi.org/10.25226/bboc.v139i3.201...
). Recently, it has also been recorded in several sites in mainland northeastern Brazil: Fortaleza in March 2018 (WA 2915623; J. Amaya) and Caucaia in August 2019 (WA 3479117; L. Soares), Ceará; Gurinhém in March 2020 (WA 3711727; G. Luz) and João Pessoa in January 2021 (WA 4182921. J. Abraão), Paraíba; Ipojuca in October 2021 (WA 4535114; S. Almeida) and February and March 2022 (e.g., WA 4777127; A. Wittmann), Pernambuco; and the abovementioned Alagoas record. These records suggest that we are witnessing a rapid and successful transatlantic colonization event.

Spizaetus ornatus

The putative historic occurrence of this hawk in the PCE is an enigma (reviewed by Carlos & Girão, 2006Carlos, C.J. & Girão, W. 2006. A história do gavião-de-penacho, Spizaetus ornatus, na floresta Atlântica do nordeste do Brasil. Revista Brasileira de Ornitologia, 14(4): 405-409.) that will probably never be solved due to the massive deforestation that the region has undergone. Here, we tentatively treat Marcgrave’s (1648Marcgrave, G. 1648. Historia Naturalis Brasiliae. Amsterdam, Lungdunum Batavorum.) record - of a bird kept in captivity near the current municipality of Penedo - as valid for the state of Alagoas, but it is worth noting that deciding whether to put this species on our secondary or tertiary list is entirely a matter of speculation given the available evidence (see Carlos & Girão, 2006Carlos, C.J. & Girão, W. 2006. A história do gavião-de-penacho, Spizaetus ornatus, na floresta Atlântica do nordeste do Brasil. Revista Brasileira de Ornitologia, 14(4): 405-409.), so that both options would be equally reasonable.

Bubo virginianus

One individual observed at the Murici Ecological Station on 19 January 1986 (Teixeira et al., 1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157.) is the only record of this owl for the state. Given the documented presence of this species in extreme northeastern Brazil (Lima et al., 2018Lima, R.D.; Dantas, H.R. & Oliveira, D.V. 2018. Ocorrência de Bubo virginianus (Strigiformes: Strigidae) no extremo nordeste do Brasil: primeiro registro documentado para o estado do Rio Grande do Norte e revisão dos registros no Nordeste brasileiro. Atualidades Ornitológicas, 206: 11-15.), its occurrence in Alagoas is not so unexpected.

Falco rufigularis

One individual observed in Porto de Pedras on 20 February 1986 (Teixeira et al., 1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157.) is the only record of this falcon both in the state and in the PCE (Roda & Pereira, 2006Roda, S.A. & Pereira, G.A. 2006. Distribuição recente e conservação das aves de rapina florestais do Centro Pernambuco. Revista Brasileira de Ornitologia, 14(4): 331-344.). Documented records in northern Bahia (e.g., WA 1118527; P.C. Lima) suggest that this species’ occurrence in Alagoas is not unlikely.

Pyrrhura griseipectus

Undocumented sightings from Murici are the only clues to the putative occurrence of this species in Alagoas (Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.; J.F. Pacheco pers. comm. in Olmos et al., 2005Olmos, F.; Silva, W.A.G. & Albano, C. 2005. Grey-breasted Conure Pyrrhura griseipectus, an overlooked endangered species. Cotinga, 24: 77-83.). Individuals were illegally captured in Murici and sold at local bird markets, but no photographs or specimens from Alagoas survived to date. The species has documented records from some rainforest enclaves and inselbergs in the states of Ceará and Pernambuco (Olmos et al., 2005Olmos, F.; Silva, W.A.G. & Albano, C. 2005. Grey-breasted Conure Pyrrhura griseipectus, an overlooked endangered species. Cotinga, 24: 77-83.; Girão et al., 2010Girão, W.: Albano, A. & Campos, A.A. 2010. Inselbergs as habitat to the Critically Endangered Grey-breasted Parakeet (Pyrrhura griseipectus), an endemic species from northeastern Brazil. Revista Brasileira de Ornitologia, 18(2): 130-132.) and was recently found in northern Bahia (e.g., WA 4175054, C. Brito), although the latter population seems to exhibit a slightly distinct color on the top of the head and may be of a different taxon. Regarding the putative records from the PCE (e.g.,Marcgrave, 1648Marcgrave, G. 1648. Historia Naturalis Brasiliae. Amsterdam, Lungdunum Batavorum.; Zenaide, 1953Zenaide, H. 1953. Aves da Paraíba. João Pessoa, Editora Teone.; Teixeira et al., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.) as valid makes sense from a biogeographic perspective because several other birds, such as Odontophorus capueira plumbeicollis and Xiphorhynchus atlanticus, share the same distributional pattern.

Thectocercus acuticaudatus

Many flocks, identified as being of this species, were observed in the municipalities of Quebrangulo and Porto de Pedras between 1987 and 1988 (Teixeira et al., 1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157.). On the one hand, documented records in northern Bahia (e.g., WA 4346261; P.E. Matos) and records in Pernambuco (Sousa et al., 2012Sousa, A.E.B.A.; Lima, D.M. & Lyra-Neves, R.M. 2012. Avifauna of the Catimbau National Park in the brazilian state of Pernambuco, Brazil: species richness and spatio-temporal variation. Revista Brasileira de Ornitologia, 20(3): 230-245.) suggest that this species’ occurrence in Alagoas is not unlikely and, therefore, that Teixeira et al.’s (1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157.) records may be valid. On the other hand, it is odd that many flocks were observed, and the species seemed to be common in Alagoas (Teixeira et al., 1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157.), but it has never been recorded again in the state despite extensive ornithological surveying and birdwatching in Quebrangulo (Studer, 2015Studer, A. 2015. Aves da Reserva Biológica de Pedra Talhada. In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 377-405.; WikiAves, 2021A Enciclopédia das Aves do Brasil (WikiAves). 2021. https://www.wikiaves.com.br. Access: 15/03/2022.
https://www.wikiaves.com.br...
), and thus there remains a possibility that Teixeira et al.’s (1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157.) records might be misidentifications of Diopsittaca nobilis, which is known from these sites. We tentatively treat the abovementioned undocumented records as valid considering that the species’ occurrence in Alagoas is not unlikely.

Philohydor lictor

Two collected in Mamanguape, Paraíba (MZUSP 40088 and 40089; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.), establish this species’ occurrence in the PCE. The only other records in the region, all undocumented, were at the Murici Ecological Station (J.M. Barnett pers. comm. in Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.) and in a few localities in the state of Pernambuco (Farias et al., 2002Farias, G.B.; Brito, M.T. & Pacheco, G.L. 2002. Registros ornitológicos de Pernambuco. Recife, Observadores de Aves de Pernambuco.).

DISCUSSION

The avifauna of the state of Alagoas is relatively well known compared with that of other states in northeastern Brazil (e.g.,Sagot-Martin et al., 2020Sagot-Martin, F.; Lima, R.D.; Pacheco, J.F.; Irusta, J.B.; Pichorim, M. & Hassett, D.M. 2020. An updated checklist of the birds of Rio Grande do Norte, Brazil, with comments on new, rare, and unconfirmed species. Bulletin of the British Ornithologists’ Club, 140(3): 218-298. https://doi.org/10.25226/bboc.v140i3.2020.a2.
https://doi.org/10.25226/bboc.v140i3.202...
). Marcgrave’s pioneering contribution along with that of some ornithologists who conducted important ornithological surveys in the state (Pinto, 1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334., 1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.; Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.; Teixeira et al., 1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74., 1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157., 1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79., 1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157., 1993Teixeira, D.M.; Otoch, R.; Luigi, G.; Raposo, M.A. & Almeida, A.C.C. 1993. Notes on some birds of northeastern Brazil (5). Bulletin of the British Ornithologists’ Club, 113(1): 48-52.; Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.; Studer, 2015Studer, A. 2015. Aves da Reserva Biológica de Pedra Talhada. In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 377-405.) and, more recently, records produced by birdwatchers (approximately 39 species listed herein were first recorded for the state by birdwatchers who archived their records on WikiAves), have culminated in a list of 520 bird species recorded in the state, of which 503 have at least one record with associated documentary evidence. It is almost impossible, however, not to think about the probable richer avifauna the state harbored before the almost complete devastation of its rainforests. Single records such as those of Trogon collaris and Hypoedaleus guttatus, as well as evidence of the past occurrence of some species such as Crax cf. fasciolata (Lees & Pimm, 2015Lees, A.C. & Pimm S.L. 2015. Species, extinct before we know them? Current Biology, 25(5): R177-R180. https://doi.org/10.1016/j.cub.2014.12.017.
https://doi.org/10.1016/j.cub.2014.12.01...
), are traces of this putative richer avifauna. Many other recent and ongoing extinctions in the region seem to be just the tip of the iceberg, given that we may have already reached a point of no return for many other birds, such as Trogon muriciensis, Sclerurus caudacutus caligineus and Myrmotherula snowi (but see a more optimistic view in Develey & Phalan, 2021Develey, P.F. & Phalan, B.T. 2021. Bird extinctions in Brazil’s Atlantic Forest and how they can be prevented. Frontiers in Ecology and Evolution, 9: 275. https://doi.org/10.3389/fevo.2021.624587.
https://doi.org/10.3389/fevo.2021.624587...
). Many bird taxa endemic to the PCE and isolated populations from otherwise typical Amazonian taxa (e.g., Crypturellus strigulosus) are in the very verge of extinction.

The Atlantic Forest in Alagoas has been suffering from almost five centuries of massive deforestation to make way for sugarcane plantations and cattle ranching (Coimbra-Filho & Câmara, 1996Coimbra-Filho, A.F. & Câmara, I.G. 1996. Os limites originais do Bioma Mata Atlântica na região nordeste do Brasil. Rio de Janeiro, RCBN.; Silva & Tabarelli, 2000Silva, J.M.C. & Tabarelli, M. 2000. Tree species impoverishment and the future flora of the Atlantic Forest of northeast Brazil. Nature, 404(6773): 72-74. https://doi.org/10.1038/35003563.
https://doi.org/10.1038/35003563...
; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.; Tabarelli et al., 2006Tabarelli, M.; Aguiar, A.V.; Grillo, A.S. & Santos, A.M.M . 2006. Fragmentação e perda de habitats na Mata Atlântica ao norte do Rio São Francisco. In: Siqueira-Filho, J.Á. & Leme, E.C.M. Fragmentos de Mata Atlântica do Nordeste: biodiversidade, conservação e suas bromélias. Rio de Janeiro, Andrea Jacobson Estúdio Editorial. p. 80-99.). In addition, intense hunting and caging, along with forest devastation, have rendered many species either very scarce or extinct in the region (Teixeira, 1986Teixeira, D.M. 1986. The avifauna of northeastern Brazilian Atlantic Forests: a case of mass extinction? Ibis, 128(1): 167-168.; Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46., bSilveira, L.F. ; Olmos, F. ; Roda, S.A. &Long, A.J . 2003b. Notes on the Seven-coloured Tanager Tangara fastuosa in north-east Brazil. Cotinga, 20: 82-88., 2004Silveira, L.F. ; Olmos, F. &Long, A.J . 2004. Taxonomy, history and status of the Alagoas Curassow Mitu mitu (Linnaeus, 1766), the world’s most threatened Cracidae. Ararajuba, 12(2): 43-50.). The state’s coastal forests, the most affected, were nearly decimated (Coimbra-Filho & Câmara, 1996Coimbra-Filho, A.F. & Câmara, I.G. 1996. Os limites originais do Bioma Mata Atlântica na região nordeste do Brasil. Rio de Janeiro, RCBN.) and the few remaining fragments continue to suffer from logging and illegal hunting, caging and trafficking - pervasive issues in northeastern Brazil (Fernandes-Ferreira et al., 2012Fernandes-Ferreira, H.; Mendonça, S.V.; Albano, C.; Ferreira, F.S. & Alves, R.R.N. 2012. Hunting, use and conservation of birds in Northeast Brazil. Biodiversity and Conservation, 21(1): 221-244. https://doi.org/10.1007/s10531-011-0179-9.
https://doi.org/10.1007/s10531-011-0179-...
; Bezerra et al., 2012Bezerra, D.M.M.; Araujo, H.F.P. & Alves, R.R.N. 2012. Captura de aves silvestres no semiárido brasileiro: técnicas cinegéticas e implicações para conservação. Tropical Conservation Science, 5(1): 50-66. https://doi.org/10.1177/194008291200500106.
https://doi.org/10.1177/1940082912005001...
; Alves et al., 2013aAlves, R.R.N.; Leite, R.C.L.; Souto, W.M.S.; Bezerra, D.M. & Loures-Ribeiro, A. 2013a. Ethno-ornithology and conservation of wild birds in the semi-arid Caatinga of northeastern Brazil. Journal of Ethnobiology and Ethnomedicine, 9(1): 1-12. https://doi.org/10.1186/1746-4269-9-14.
https://doi.org/https://doi.org/10.1186/...
, bAlves, R.R.N.; Lima, J.R.D.F. & Araujo, H.F.P. 2013b. The live bird trade in Brazil and its conservation implications: an overview. Bird Conservation International, 23(1): 53-65. https://doi.org/10.1017/S095927091200010X.
https://doi.org/10.1017/S095927091200010...
). The resulting impoverishment of the region’s avifauna is evidenced by some global extinctions, such as Philydor novaesi and Cichlocolaptes mazarbarnetti (Barnett & Buzzetti, 2014Barnett, J.M. & Buzzetti, D.R.C. 2014. A new species of Cichlocolaptes Reichenbach 1853 (Furnariidae), the ‘gritador-do-nordeste’, an undescribed trace of the fading bird life of northeastern Brazil. Revista Brasileira de Ornitologia, 22(2): 75-94. https://doi.org/10.1007/BF03544237.
https://doi.org/10.1007/BF03544237...
; Lees et al., 2014Lees, A.C.; Albano, C.; Kirwan, G.M.; Pacheco, J.F. & Whittaker, A. 2014. The end of hope for Alagoas Foliage-gleaner Philydor novaesi. Neotropical Birding, 14: 20-28.; Pereira et al., 2014aPereira, G.A.; Dantas, S.D.M.; Silveira, L.F.; Roda, S.A.; Albano, C.; Sonntag, F.A.; Leal, S.; Periquito, M.C.; Malacco, G.B. & Lees, A.C. 2014a. Status of the globally threatened forest birds of northeast Brazil. Papéis Avulsos de Zoologia, 54(14): 177-194. https://doi.org/10.1590/0031-1049.2014.54.14.
https://doi.org/10.1590/0031-1049.2014.5...
), and local extirpations commented herein on the species accounts. Because the PCE supported a Pleistocene forest refuge (Carnaval & Moritz, 2008Carnaval, A.C. & Moritz, C. 2008. Historical climate modelling predicts patterns of current biodiversity in the Brazilian Atlantic Forest. Journal of Biogeography, 35(7): 1187-1201. https://doi.org/10.1111/j.1365-2699.2007.01870.x.
https://doi.org/10.1111/j.1365-2699.2007...
) where several lineages evolved (e.g.,Maldonado‐Coelho et al., 2013Maldonado Coelho, M.; Blake, J.G.; Silveira, L.F.; Batalha Filho, H. & Ricklefs, R.E. 2013. Rivers, refuges and population divergence of fire eye antbirds (Pyriglena) in the Amazon Basin. Journal of Evolutionary Biology, 26(5): 1090-1107. https://doi.org/10.1111/jeb.12123.
https://doi.org/10.1111/jeb.12123...
; Bocalini et al., 2021Bocalini, F.; Bolívar-Leguizamón, S.D.; Silveira, L.F. & Bravo, G.A. 2021. Comparative phylogeographic and demographic analyses reveal a congruent pattern of sister relationships between bird populations of the northern and south-central Atlantic Forest. Molecular Phylogenetics and Evolution, 154: 1-20, 106973. https://doi.org/10.1016/j.ympev.2020.106973.
https://doi.org/10.1016/j.ympev.2020.106...
), many of such populations that have probably gone extinct in the PCE (e.g., Crax cf. fasciolata, Thamnomanes caesius and Sclerurus macconnelli) had been isolated for thousands of years and may constitute separately evolving lineages that will never been properly known (Lees & Pimm, 2015Lees, A.C. & Pimm S.L. 2015. Species, extinct before we know them? Current Biology, 25(5): R177-R180. https://doi.org/10.1016/j.cub.2014.12.017.
https://doi.org/10.1016/j.cub.2014.12.01...
). Bird taxa new to science continue to be discovered in the state’s last remaining forest fragments, often already on the brink of extinction, such as the newly described Trogon muriciensis and Megascops alagoensis (Dantas et al., 2021Dantas, S.M.; Weckstein, J.D.; Bates, J.; Oliveira, J.N.; Catanach, T.A. & Aleixo, A. 2021. Multi-character taxonomic review, systematics, and biogeography of the Black-capped/Tawny-bellied Screech Owl (Megascops atricapilla-M. watsonii) complex (Aves: Strigidae). Zootaxa, 4949(3): 401-444. https://doi.org/10.11646/zootaxa.4949.3.1.
https://doi.org/10.11646/zootaxa.4949.3....
; Dickens et al., 2021Dickens, J.K.; Bitton, P.P.; Bravo, G.A. & Silveira, L.F. 2021. Species limits, patterns of secondary contact and a new species in the Trogon rufus complex (Aves: Trogonidae). Zoological Journal of the Linnean Society, 193(2): 499-540. https://doi.org/10.1093/zoolinnean/zlaa169.
https://doi.org/10.1093/zoolinnean/zlaa1...
), rendering the PCE home to the greatest concentration of extinct and critically endangered birds in the Neotropics (Pereira et al., 2014aPereira, G.A.; Dantas, S.D.M.; Silveira, L.F.; Roda, S.A.; Albano, C.; Sonntag, F.A.; Leal, S.; Periquito, M.C.; Malacco, G.B. & Lees, A.C. 2014a. Status of the globally threatened forest birds of northeast Brazil. Papéis Avulsos de Zoologia, 54(14): 177-194. https://doi.org/10.1590/0031-1049.2014.54.14.
https://doi.org/10.1590/0031-1049.2014.5...
) or even in the world (RDL et al., in prep.).

The avifauna of Alagoas can be categorized into three major groups according to their biogeographical affinities: that of the seasonally dry forests of the state’s interior (Caatinga birds), that of the rainforests (Atlantic Forest birds), and that of the coastal and oceanic environments (shorebirds and seabirds). Despite its relatively small area, the state harbors eight out of the 13 bird taxa considered to be endemic or near-endemic to the Caatinga (Lima, 2021Lima, R.D. 2021. Birds of the Caatinga revisited: the problem of enclaves within, but not of, the Caatinga. Journal of Arid Environments, 191: 104537. https://doi.org/10.1016/j.jaridenv.2021.104537.
https://doi.org/10.1016/j.jaridenv.2021....
); and may harbor more since the state’s interior has been considerably less surveyed than its rainforests. Potential species from this group include Sakesphoroides cristatus and Megaxenops parnaguae, which are known to occur in nearby Pernambuco very close to the states’ boundary. Alagoas also harbors 42 out of the 223 bird species considered to be endemic to the Atlantic Forest (sensuVale et al., 2018Vale, M.M.; Tourinho, L.; Lorini, M.L.; Rajão, H. & Figueiredo, M.S. 2018. Endemic birds of the Atlantic Forest: traits, conservation status, and patterns of biodiversity. Journal of Field Ornithology, 89(3): 193-206. https://doi.org/10.1111/jofo.12256.
https://doi.org/10.1111/jofo.12256...
). Remarkably, almost all bird taxa endemic to the PCE occur in the state, Glaucidium mooreorum being the only exception (Pereira et al., 2014aPereira, G.A.; Dantas, S.D.M.; Silveira, L.F.; Roda, S.A.; Albano, C.; Sonntag, F.A.; Leal, S.; Periquito, M.C.; Malacco, G.B. & Lees, A.C. 2014a. Status of the globally threatened forest birds of northeast Brazil. Papéis Avulsos de Zoologia, 54(14): 177-194. https://doi.org/10.1590/0031-1049.2014.54.14.
https://doi.org/10.1590/0031-1049.2014.5...
). Seabirds are probably the least known group and have been reported for the state in only a few studies (Olmos, 2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.; Sousa et al., 2005Sousa, M.C.; Fraga, R.T. & Carlos, C.J. 2005. Seabird records from Alagoas and Sergipe states, north-east Brazil. Cotinga, 24: 112-114.; Almeida et al., 2019Almeida, B.J.M.; Moreira, A.L.; Borges, J.C.G.; Batista, R.L.G.; Parente, J.E.V. & Reis, E.C. 2019. Aves marinhas e costeiras da bacia de Sergipe-Alagoas. In: Reis, E.C. & Carneiro M.E.R. Quelônios, aves e mamíferos da bacia Sergipe-Alagoas. São Cristóvão, Editora da Universidade Federal de Sergipe. p. 70-115.). Geolocation and isotope data show, however, that several pelagic seabird species cross the coast of northeastern Brazil (Zino et al., 2011Zino, F.; Phillips, R. & Biscoito, M. 2011. Zino’s Petrel movements at sea: a preliminary analysis of datalogger results. Birding World, 24(5): 216-219.; Ramírez et al., 2013Ramírez, I.; Paiva, V.H.; Menezes, D.; Silva, I.; Phillips, R.A.; Ramos, J.A. & Garthe, S. 2013. Year-round distribution and habitat preferences of the Bugio petrel. Marine Ecology Progress Series, 476: 269-284. https://doi.org/10.3354/meps10083.
https://doi.org/10.3354/meps10083...
; Pollet et al., 2014Pollet, I.L.; Hedd, A.; Taylor, P.D.; Montevecchi, W.A. & Shutler, D. 2014. Migratory movements and wintering areas of Leach’s Storm‐Petrels tracked using geolocators. Journal of Field Ornithology, 85(3): 321-328. https://doi.org/10.1111/jofo.12071.
https://doi.org/10.1111/jofo.12071...
, 2019Pollet, I.L.; Ronconi, R.A.; Leonard, M.L. & Shutler, D. 2019. Migration routes and stopover areas of Leach’s storm petrels Oceanodroma leucorhoa. Marine Ornithology, 47: 55-65.; Ramos et al., 2015Ramos, R.; Sanz, V.; Militão, T.; Bried, J.; Neves, V.C.; Biscoito, M.; Phillips, R.A.; Zino, F. & González Solís, J. 2015. Leapfrog migration and habitat preferences of a small oceanic seabird, Bulwer’s petrel (Bulweria bulwerii). Journal of Biogeography, 42(9): 1651-1664. https://doi.org/10.1111/jbi.12541.
https://doi.org/10.1111/jbi.12541...
, 2016Ramos, R.; Ramírez, I.; Paiva, V.H.; Militão, T.; Biscoito, M.; Menezes, D.; Phillips, R.A. & González-Solís, J. 2016. Global spatial ecology of three closely-related gadfly petrels. Scientific Reports, 6(1): 1-11. https://doi.org/10.1038/srep23447.
https://doi.org/10.1038/srep23447...
, 2017Ramos, R.; Carlile, N.; Madeiros, J.; Ramírez, I.; Paiva, V.H.; Dinis, H.A.; Zino, F.; Biscoito, M.; Leal, G.R.; Bugoni, L.; Jodice, P.G.R.; Ryan, P.G. & González Solís, J. 2017. It is the time for oceanic seabirds: Tracking year round distribution of gadfly petrels across the Atlantic Ocean. Diversity and Distributions, 23(7): 794-805. https://doi.org/10.1111/ddi.12569.
https://doi.org/10.1111/ddi.12569...
; Zajková et al., 2017Zajková, Z.; Militão, T. & González-Solís, J. 2017. Year-round movements of a small seabird and oceanic isotopic gradient in the tropical Atlantic. Marine Ecology Progress Series, 579: 169-183. https://doi.org/10.3354/meps12269.
https://doi.org/10.3354/meps12269...
) and thus new records for the state may be expected from such birds. However, when accounting for some of these seabirds, it is important to distinguish core members of the state’s avifauna from those species represented only by vagrants (Remsen, 1994Remsen, J.V. 1994. Use and misuse of bird lists in community ecology and conservation. The Auk, 111(1): 225-227. https://doi.org/10.2307/4088531.
https://doi.org/10.2307/4088531...
). Vagrants on our list include Chroicocephalus maculipennis (Saunders, 1896Saunders, H. 1896. Catalogue of the Gaviae and Tubinares in the collection of the British Museum. London, Longman & Co.), Leucophaeus pipixcan (Leal et al., 2013Leal, S.; Serapião, L.C.H. & Pereira, G.A. 2013. Registros documentados da gaivota-de-franklin Leucophaeus pipixcan (Wagler, 1831) no Nordeste do Brasil e da gaivota-de-cabeça-cinza Chroicocephalus cirrocephalus (Vieillot, 1817) nos Estados de Alagoas e Pernambuco. Revista Brasileira de Ornitologia, 21(1): 105-108.), Pelecanus occidentalis (Patrial et al., 2011Patrial, L.W.; Pessoa, A.S.P. & Pereira, G.A. 2011. Primeiro registro do pelicano-peruano Pelecanus thagus no Brasil e registro documentado do pelicano-pardo P. occidentalis na costa leste brasileira. Revista Brasileira de Ornitologia, 19(4): 539-540.), and possibly Ardeola ralloides and Spheniscus magellanicus (but see their accounts). Although these species are not core members of the state’s avifauna, gathering and reporting such records remain essential to understanding their distributional and dispersal patterns.

We have presented here the first critical review of all available bird records for the state of Alagoas, wherein we have thoroughly considered each species’ occurrence and removed those records that proved or seemed to be invalid. We hope that our secondary list, highlighting species that do not have documentary evidence for their occurrence in the state, will serve as a basis for future directional searches.

ACKNOWLEDGEMENTS

We dedicate this article to Fernando Mendes Pinto who, for more than 40 years, fight for the conservation of birds and forest fragments in Alagoas. The creation of Private Natural Heritage Reserves, a project initiated by him in Alagoas, has resulted in the protection of thousands of hectares of what still remains of the Atlantic Forest in Alagoas. Fernando Pinto has dedicated much of his life to the protection of forests and their birds, playing an important role in the conservation of the Alagoas Curassow. Many people also made this article possible by sending us unpublished records, information and photos of museum specimens. We thank Curtis Marantz for sharing information about his records in Alagoas; Kimball L. Garrett (LACM), Mark Adams (NHMUK), Jeremiah Trimble (MCZ), Charles Dardia (Cornell University), Luciano Naka, Victor Leandro, Daniele Mariz Vieira (UFPE) and Renato Gaban-Lima (MHNAL) for providing photos of important museum specimens; Simone Dena (FNJV) and Luiz P. Gonzaga (ASEC) for sending sound recordings from Alagoas under their care; and Dione Seripierri (MZUSP) for sending copies of some references. Instituto Biota de Conservação kindly allowed us to use their records. We also wish to thank GBIF, VertNet, iDigBio and SiBBr for making museum specimen data so easy to access, as well as WikiAves, Macaulay Library and xeno-canto for providing accessible archives of avian records. Finally, we are grateful to dozens of collaborators and students who shared field work and records with our team. We thank specially Fernando Pinto, Alberto Fonseca, José da Silva Nogueira, Antônio Guimarães (Zu, in memoriam), Clodoaldo José Bakker, Bertholdino Apolônio Teixeira Júnior, José Fernando Pacheco, Fernando Straube, Adrian Long, Nigel Collar, Sônia Aline Roda, Glauco Pereira, Michelle Cardoso, Marco Freitas, Epitácio Correia de Farias Junior, Ana Cecília Pires de Azevedo Lopes, Wilson Lemos de Morais Neto, Murilo Sharp, and Bruno Ehlers for providing financial and logistical support, and granted access to some important localities for collecting specimens; and Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) for issuing collecting grants. Finally, we thank two anonymous reviewers for valuable comments on the manuscript.

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  • FUNDING INFORMATION: We thank Fundação Grupo Boticário de Proteção à Natureza (project 0866-2001) and Fundação de Amparo à Pesquisa do Estado de Alagoas for supporting our field work at the Murici Ecological Station, and the Neotropical Bird Club Conservation Awards for providing grants to Márcio Efe’s lab students. LFS receives grants from the São Paulo Research Foundation (#2017/23458-2 and 2018/20249-7) and the Brazilian Research Council (#308337/2019-0). RDL receives grants from the São Paulo Research Foundation (#2021/10339-1).
  • Published with the financial support of the "Programa de Apoio às Publicações Científicas Periódicas da USP".

APPENDIX 1


List of 520 bird species recorded in the state of Alagoas. Species of the secondary list (i.e., those lacking documentary evidence) are presented within brackets to distinguish them from those of the primary list. The status of each species in the state is coded as resident (RE), seasonal visitor from the Northern Hemisphere (VN), seasonal visitor from the Southern Hemisphere (VS), vagrant (VA) or unknown (UN). Literature: 1 = Saunders (1896Saunders, H. 1896. Catalogue of the Gaviae and Tubinares in the collection of the British Museum. London, Longman & Co.); 2 = Pinto (1938Pinto, O.M.O. 1938. Catálogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista. 1ª parte. Revista do Museu Paulista, 22: 1-566.); 3 = Pinto (1946Pinto, O.M.O.. 1946. Comentários sôbre as Aves descritas na Historia Naturalis Brasiliae de Jorge Marcgrave. São Paulo, Departamento de Zoologia da Secretaria da Agricultura, Indústria e Comércio de São Paulo.); 4 = Hellmayr & Conover (1948aHellmayr, C.E. & Conover, B. 1948a. Catalogue of the birds of the Americas and the adjacent islands in Field Museum of Natural History. Chicago, Field Museum Press. v. 13, part I, number 2.); 5 = Hellmayr & Conover (1948bHellmayr, C.E. & Conover, B. 1948b. Catalogue of the birds of the Americas and the adjacent islands in Field Museum of Natural History. Chicago, Field Museum Press. v. 13, part I, number 3.); 6 = Pinto (1952Pinto, O.M.O. 1952. Redescobrimento de Mitu mitu (Linné) no nordeste do Brasil (est. de Alagoas). Papéis Avulsos do Departamento de Zoologia, 10(19): 325-334.); 7 = Pinto (1954Pinto, O.M.O.. 1954. Resultados ornitológicos de duas viagens científicas ao estado de Alagoas. Papéis Avulsos do Departamento de Zoologia, 12(1): 1-98.); 8 = Novaes (1961Novaes, F.C. 1961. Sobre Thamnophilus palliatus (Licht.), com especial referência ao leste do Brasil (Formicariidae, Aves). Anais da Academia Brasileira de Ciências, 33: 111-117.); 9 = Pinto & Camargo (1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.); 10 = Pinto (1978Pinto, O.M.O.. 1978. Novo catálogo das aves do Brasil. 1ª parte. São Paulo, Empresa Gráfica Revista dos Tribunais.); 11 = Teixeira & Gonzaga (1983aTeixeira, D.M. & Gonzaga, L.P. 1983a. Um novo Furnariidae do nordeste do Brasil: Philydor novaesi sp. nov. (Aves, Passeriformes). Boletim do Museu Paraense Emílio Goeldi, 124: 1-22.); 12 = Teixeira & Gonzaga (1983bTeixeira, D.M. & Gonzaga, L.P. 1983b. A new antwren from northeastern Brazil. Bulletin of the British Ornithologists’ Club, 103(4): 133-135.); 13 = Teixeira & Gonzaga (1985Teixeira, D.M. & Gonzaga, L.P. 1985. Uma nova subespécie de Myrmotherula unicolor (Ménétries, 1835) (Passeriformes, Formicariidae) do nordeste do Brasil. Boletim do Museu Nacional, 310: 1-15.); 14 = Teixeira et al. (1986Teixeira, D.M.; Nacinovic, J.B. & Tavares, M.S. 1986. Notes on some birds of northeastern Brazil. Bulletin of the British Ornithologists’ Club, 106(2): 70-74.); 15 = Teixeira (1987Teixeira, D.M. 1987. A new tyrannulet (Phylloscartes) from northeastern Brazil. Bulletin of the British Ornithologists’ Club, 107(1): 37-41.); 16 = Teixeira et al. (1987Teixeira, D.M.; Nacinovic, J.B. & Pontual, F.B. 1987. Notes on some birds of northeastern Brazil (2). Bulletin of the British Ornithologists’ Club, 107(4): 151-157.); 17 = Studer e Vielliard (1988Studer, A. & Vielliard, J. 1988. Premières données étho-écologiques sur l’Ictéridé brésilien Curaeus forbesi (Sclater, 1886) (Aves, Passeriformes). Revue Suisse de Zoologie, 95(4): 1063-1077.); 18 = Teixeira et al. (1988Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1988. Notes on some birds of northeastern Brazil (3). Bulletin of the British Ornithologists’ Club, 108(2): 75-79.); 19 = Teixeira & Luigi (1989Teixeira, D.M. & Luigi, G. 1989. Notas sobre Cranioleuca semicinerea (Reichenbach, 1853) (Aves, Furnariidae). Revista Brasileira de Biologia, 49(2): 605-613.); 20 = Teixeira et al. (1989Teixeira, D.M.; Nacinovic, J.B. & Luigi, G. 1989. Notes on some birds of northeastern Brazil (4). Bulletin of the British Ornithologists’ Club, 109(3): 152-157.); 21 = Studer & Vielliard (1990Studer, A. & Vielliard, J. 1990. The nest of the Wing-banded Hornero Furnarius figulus in northeastern Brazil. Ararajuba, 1: 39-41.); 22 = Collar et al. (1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.); 23 = Teixeira (1992Teixeira, D.M. 1992. As fontes do paraíso - um ensaio sobre a ornitologia no Brasil holandês (1624-1654). Revista Nordestina de Biologia, 7(1/2): 1-149.); 24 = Forrester (1993Forrester, B.C. 1993. Birding Brazil: a check-list and site guide. Irvine, John Geddes.); 25 = Nardelli (1993Nardelli, P. 1993. A preservação do Mutum-de-Alagoas: Mitu mitu. Nilópolis, Zoo-Botânica Mário Nardeli.); 26 = Teixeira et al. (1993Teixeira, D.M.; Otoch, R.; Luigi, G.; Raposo, M.A. & Almeida, A.C.C. 1993. Notes on some birds of northeastern Brazil (5). Bulletin of the British Ornithologists’ Club, 113(1): 48-52.); 27 = Pacheco & Whitney (1995Pacheco, J.F. & Whitney, B.M. 1995. Range extensions for some birds in northeastern Brazil. Bulletin of the British Ornithologists’ Club, 115(3): 157-163.); 28 = Silva e Silva (1996Silva e Silva, R. 1996. Records and geographical distribution of the Peregrine Falcon Falco peregrinus Tunstall, 1771 (Aves, Falconidae) in Brazil. Papéis Avulsos de Zoologia, 39(13): 249-270.); 29 = Sick (1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.); 30 = Teixeira & Almeida (1997Teixeira, D.M. & Almeida, A.C.C. 1997. A biologia da “escarradeira” Xipholena atropurpurea (Wied, 1820) (Aves, Cotingidae). Eunápolis, Veracruz Florestal Ltda.); 31 = Raposo et al. (1998Raposo, M.A.; Parrini, R. & Napoli, M. 1998. Taxonomia, morfometria e bioacústica do grupo específico Hylophilus poicilotis/H. amaurocephalus (Aves, Vireonidae). Ararajuba, 6(2): 87-109.); 32 = Schuchmann (1999Schuchmann, K.L. 1999. Family Trochilidae. In: del Hoyo, J.; Elliott, A. & Christie, D.A. Handbook of the Birds of the World. Volume 5: Barn-owls to hummingbirds. Barcelona, Lynx Edicions. p. 468-680.); 33 = Olmos (2002Olmos, F. 2002. Non-breeding seabirds in Brazil: a review of band recoveries. Ararajuba, 10: 31-42.); 34 = Roda (2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.); 35 = Roda & Carlos (2003Roda, S.A. & Carlos, C.J. 2003. New records for some poorly know birds of the Atlantic Forest of northeastern Brazil. Cotinga, 20: 17-20.); 36 = Roda et al. (2003Roda, S.A.; Carlos, C.J. & Rodrigues, R.C. 2003. New and noteworthy records for some endemic and threatened birds of the Atlantic Forest of north-eastern Brazil. Bulletin of the British Ornithologists’ Club, 123(4): 227-236.); 37 = Silveira et al. (2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.); 38 = Silveira et al. (2003bSilveira, L.F. ; Olmos, F. ; Roda, S.A. &Long, A.J . 2003b. Notes on the Seven-coloured Tanager Tangara fastuosa in north-east Brazil. Cotinga, 20: 82-88.); 39 = Amaral & Silveira (2004Amaral, F.S.R. & Silveira, L.F. 2004. Tinamus solitarius pernambucensis Berla, 1946 é sinônimo de Tinamus solitarius (Vieillot, 1819). Ararajuba, 12(1): 33-41.); 40 = Silveira et al. (2004Silveira, L.F. ; Olmos, F. &Long, A.J . 2004. Taxonomy, history and status of the Alagoas Curassow Mitu mitu (Linnaeus, 1766), the world’s most threatened Cracidae. Ararajuba, 12(2): 43-50.); 41 = Olmos et al. (2005Olmos, F.; Silva, W.A.G. & Albano, C. 2005. Grey-breasted Conure Pyrrhura griseipectus, an overlooked endangered species. Cotinga, 24: 77-83.); 42 = Sousa et al. (2005Sousa, M.C.; Fraga, R.T. & Carlos, C.J. 2005. Seabird records from Alagoas and Sergipe states, north-east Brazil. Cotinga, 24: 112-114.); 43 = Cabral et al. (2006Cabral, S.A.S.; Azevedo-Júnior, S.M. & Larrazábal, M.A. 2006. Levantamento das aves da Área de Proteção Ambiental de Piaçabuçu, no litoral de Alagoas, Brasil. Ornithologia, 1(2): 161-167.); 44 = Carlos & Girão (2006Carlos, C.J. & Girão, W. 2006. A história do gavião-de-penacho, Spizaetus ornatus, na floresta Atlântica do nordeste do Brasil. Revista Brasileira de Ornitologia, 14(4): 405-409.); 45 = Roda & Pereira (2006Roda, S.A. & Pereira, G.A. 2006. Distribuição recente e conservação das aves de rapina florestais do Centro Pernambuco. Revista Brasileira de Ornitologia, 14(4): 331-344.); 46 = Mestre (2007Mestre, L.A.M. 2007. Recuperações no Brasil de Falcões-peregrinos (Falco peregrinus) anilhados na América do Norte entre 1967 e 2001. Ornithologia, 2(2): 72-80.); 47 = Lobo-Araújo et al. (2008Lobo-Araújo, L.W.; Toleto, M.T.F.; Efe, M.A.; Malhado, A.C.M.; Vital, M.V.C.; Toledo-Lima, G.S.; Macario, P.; Santos, J.G. & Ladle, R.J. 2013. Bird communities in three forest types in the Pernambuco Centre of Endemism, Alagoas, Brazil. Iheringia, 103(2): 85-96. https://doi.org/10.1590/S0073-47212013000200002.
https://doi.org/10.1590/S0073-4721201300...
); 48 = Minns et al. (2010Minns, J.C.; Buzzetti, D.R.C.; Albano, C.G.; Whittaker, A.; Grosset, A.E. & Parrini, R. 2010. Birds of Brazil. DVD-ROM. Vinhedo, Avis Brasilis Editora.); 49 = Araujo & Rodrigues (2011Araujo, H.F.P. & Rodrigues, R.C. 2011. Birds from open environments in the caatinga from state of Alagoas, northeastern Brazil. Zoologia, 28(5): 629-640. https://doi.org/10.1590/S1984-46702011000500011.
https://doi.org/10.1590/S1984-4670201100...
); 50 = Patrial et al. (2011Patrial, L.W.; Pessoa, A.S.P. & Pereira, G.A. 2011. Primeiro registro do pelicano-peruano Pelecanus thagus no Brasil e registro documentado do pelicano-pardo P. occidentalis na costa leste brasileira. Revista Brasileira de Ornitologia, 19(4): 539-540.); 51 = Lyra-Neves et al. (2012Lyra-Neves, R.M.; Azevedo-Júnior, S.M.; Telino-Júnior, W.R. & Larrazábal, M.E.L. 2012. The Birds of the Talhado do São Francisco Natural Monument in the Semi-Arid Brazilian Northeast. Revista Brasileira de Ornitologia, 20(3): 268-289.); 52 = Pereira et al. (2012Pereira, G.A.; Lobo-Araújo, L.W.; Leal, S.; Medcraft, J.P.; Marantz, C.A.; Toledo, M.T.F.; Araujo, H.F.P.; Albano, C.; Pinto, T.; Santos, C.H.A.; Serapião, L.C.H.; Silva, G.B.M. & Pioli, D. 2012. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil. Cotinga, 34: 17-22.); 53 = Leal et al. (2013Leal, S.; Serapião, L.C.H. & Pereira, G.A. 2013. Registros documentados da gaivota-de-franklin Leucophaeus pipixcan (Wagler, 1831) no Nordeste do Brasil e da gaivota-de-cabeça-cinza Chroicocephalus cirrocephalus (Vieillot, 1817) nos Estados de Alagoas e Pernambuco. Revista Brasileira de Ornitologia, 21(1): 105-108.); 54 = Lobo-Araújo et al. (2013Lobo-Araújo, L.W.; Pereira, G.A.; Leal, S. & Sousa, M.C. 2008. Registros de Tyrannus savana (Aves: Tyrannidae) para o Estado de Alagoas, Brasil. Atualidades Ornitológicas, 145: 14.); 55 = Barnett & Buzzetti (2014Barnett, J.M. & Buzzetti, D.R.C. 2014. A new species of Cichlocolaptes Reichenbach 1853 (Furnariidae), the ‘gritador-do-nordeste’, an undescribed trace of the fading bird life of northeastern Brazil. Revista Brasileira de Ornitologia, 22(2): 75-94. https://doi.org/10.1007/BF03544237.
https://doi.org/10.1007/BF03544237...
); 56 = Lees et al. (2014Lees, A.C.; Albano, C.; Kirwan, G.M.; Pacheco, J.F. & Whittaker, A. 2014. The end of hope for Alagoas Foliage-gleaner Philydor novaesi. Neotropical Birding, 14: 20-28.); 57 = Pereira et al. (2014aPereira, G.A.; Dantas, S.D.M.; Silveira, L.F.; Roda, S.A.; Albano, C.; Sonntag, F.A.; Leal, S.; Periquito, M.C.; Malacco, G.B. & Lees, A.C. 2014a. Status of the globally threatened forest birds of northeast Brazil. Papéis Avulsos de Zoologia, 54(14): 177-194. https://doi.org/10.1590/0031-1049.2014.54.14.
https://doi.org/10.1590/0031-1049.2014.5...
); 58 = Pereira et al. (2014bPereira, G.A.; Rodrigues, P.P.; Leal, S.; Periquito, M.C.; Silva, G.B.M.; Menêzes, M.; Corrêa, G.S.; Sonntag, F.A.; Almeida, A.E.M.N. & Nunes, P.B. 2014b. Important bird records from Alagoas, Pernambuco and Paraíba, north-east Brazil (2). Cotinga, 36: 45-50.); 59 = Rêgo et al. (2014Rêgo, M.A.; Del-Rio, G. & Silveira, L.F. 2014. A taxonomic review of Picumnus exilis (Aves: Picidae) reveals an underestimation of Piculet species diversity in South America. Journal of Ornithology, 155(4): 853-867. https://doi.org/10.1007/s10336-014-1081-5.
https://doi.org/10.1007/s10336-014-1081-...
); 60 = Studer et al. (2015Studer, A.; Leal, S.; Lévêque, R.; Bassin, A.; Laesser, J.; Buzzetti, D. & Sousa, M.C. 2015. Inventário da Reserva Biológica de Pedra Talhada, XXIII (Aves). In: Studer, A.; Nusbaumer, L. & Spichiger, R. Biodiversidade da Reserva Biológica de Pedra Talhada. Genève, Conservatoire et Jardin Botanique de la Ville de Genève. p. 723-747.); 61 = Campos et al. (2018Campos, L.F.A.S.; Teixeira, B.P. & Efe, M.A. 2018. The importance of isolated patches for maintaining local bird biodiversity and ecosystem function: a case study from the Pernambuco Center of Endemism, Northeast Brazil. Iheringia, 108: e2018021. https://doi.org/10.1590/1678-4766e2018021.
https://doi.org/10.1590/1678-4766e201802...
); 62 = Portes et al. (2018Portes, C.E.B.; Godoy, F.I. & Kuniy, A.A. 2018. Avifauna de três fragmentos de vegetação no litoral norte do estado de Alagoas, com ênfase em novos registros de aves ameaçadas. Atualidades Ornitológicas, 204: 33-42.); 63 = Lima et al. (2020Lima, R.D.; Tomotani, B.M. & Silveira, L.F. 2020. Colour variation and taxonomy of Picumnus limae Snethlage, 1924 and P. fulvescens Stager, 1961 (Piciformes: Picidae). Journal of Ornithology, 161(2): 491-501. https://doi.org/10.1007/s10336-020-01745-0.
https://doi.org/10.1007/s10336-020-01745...
); 64 = Dantas et al. (2021Dantas, S.M.; Weckstein, J.D.; Bates, J.; Oliveira, J.N.; Catanach, T.A. & Aleixo, A. 2021. Multi-character taxonomic review, systematics, and biogeography of the Black-capped/Tawny-bellied Screech Owl (Megascops atricapilla-M. watsonii) complex (Aves: Strigidae). Zootaxa, 4949(3): 401-444. https://doi.org/10.11646/zootaxa.4949.3.1.
https://doi.org/10.11646/zootaxa.4949.3....
); 65 = Dickens et al. (2021Dickens, J.K.; Bitton, P.P.; Bravo, G.A. & Silveira, L.F. 2021. Species limits, patterns of secondary contact and a new species in the Trogon rufus complex (Aves: Trogonidae). Zoological Journal of the Linnean Society, 193(2): 499-540. https://doi.org/10.1093/zoolinnean/zlaa169.
https://doi.org/10.1093/zoolinnean/zlaa1...
).

APPENDIX 2

Tertiary list - species for which there are published records for the state, but whose evidence is either questionable or invalid.

Crypturellus variegatus

One tinamou collected in Igarassu, Pernambuco, on 25 July 1996 (UFPE 1122) was identified as being Crypturellus variegatus and then the putative occurrence of this species in the PCE, based on this record, probably set a precedent for subsequent misidentified records of C. variegatus in Alagoas (Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.). We have checked the abovementioned specimen and it proved to be a C. soui (photos available upon request). We consider all records allegedly of C. variegatus in the PCE (Roda, 2003Roda, S.A. 2003. Aves do Centro de Endemismo Pernambuco: composição, biogeografia e conservação. PhD thesis. Belém, Universidade Federal do Pará.), probably aural encounters, to be misidentifications of C. strigulosus.

Chionomesa lactea, Aramides saracura and Psittacara leucophthalmus

These species were listed for the state in an obscure paper (Silva et al., 2015Silva, E.M.; Lima, V.F.S.; Marques, J.C.C.; Santos, A.L. & Cruz, N.L.N. 2015. Avifauna de fragmentos florestais de Mata Atlântica no município de Viçosa, Alagoas, Brasil. Enciclopédia Biosfera, 11(21): 2056-2067.). The concerned paper contains so many errors that it is difficult to take it seriously and the records allegedly of these species are obvious confusions with similar species, namely Chionomesa fimbriata, Aramides cajaneus and Diopsittaca nobilis.

Amadonastur lacernulatus

Alleged occurrence of this species in the PCE is due to a cascade of errors. Another white hawk that occurs in the PCE, the White-collared Kite Leptodon forbesi, was long believed to be an invalid species (see Dénes et al., 2011Dénes, F.V.; Silveira, L.F.; Seipke, S.H.; Thorstrom, R.; Clark, W.S. & Thiollay, J.M. 2011. The White-collared Kite (Leptodon forbesi Swann, 1922) and a review of the taxonomy of the Gray-headed Kite (Leptodon cayanensis Latham, 1790). The Wilson Journal of Ornithology, 123(2): 323-331. https://doi.org/10.1676/10-081.1.
https://doi.org/10.1676/10-081.1...
). It follows that L. forbesi was largely omitted from field guides and reference works (e.g.,Sick, 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.) and thus many ornithologists made misidentifications of white hawks in the PCE. Pinto & Camargo (1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.) were the first to report the occurrence of A. lacernulatus in the PCE. They collected a specimen of L. forbesi in Alagoas and misidentified it as A. lacernulatus, an error discovered only decades later after reexamination of the specimen (Dénes et al., 2011Dénes, F.V.; Silveira, L.F.; Seipke, S.H.; Thorstrom, R.; Clark, W.S. & Thiollay, J.M. 2011. The White-collared Kite (Leptodon forbesi Swann, 1922) and a review of the taxonomy of the Gray-headed Kite (Leptodon cayanensis Latham, 1790). The Wilson Journal of Ornithology, 123(2): 323-331. https://doi.org/10.1676/10-081.1.
https://doi.org/10.1676/10-081.1...
). In the meantime, the alleged occurrence of A. lacernulatus in the PCE, based on Pinto and Camargo’s misidentified record, was widely disseminated in the ornithological literature (Pinto, 1978Pinto, O.M.O.. 1978. Novo catálogo das aves do Brasil. 1ª parte. São Paulo, Empresa Gráfica Revista dos Tribunais.; Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Thiollay, 1994Thiollay, J. M. 1994. Family Accipitridae. In: del Hoyo, J.; Elliott, A. & Christie, D.A. Handbook of the Birds of the World. Volume 2: New World Vultures to Guineafowl. Barcelona, Lynx Edicions. p. 52-205.; Pacheco & Whitney, 1995Pacheco, J.F. & Whitney, B.M. 1995. Range extensions for some birds in northeastern Brazil. Bulletin of the British Ornithologists’ Club, 115(3): 157-163.; Sick, 1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.; Ferguson-Lees & Christie, 2001Ferguson-Lees, J. & Christie, D.A. 2001. Raptors of the world. Boston, Houghton Mifflin.) and some ornithologists who conducted field surveys in the PCE published a lot misidentified records allegedly of this species (Collar et al., 1992Collar, N.J.; Gonzaga, L.P.; Krabbe, N.; Madroño-Nieto, A.; Naranjo, L.G.; Parker, T.A. & Wege, D.C. 1992. Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, International Council for Bird Preservation.; Wege & Long, 1995Wege, D.C. & Long, A. 1995. Key areas for threatened birds in the Neotropics. Cambridge, BirdLife International.; Pacheco & Whitney, 1995Pacheco, J.F. & Whitney, B.M. 1995. Range extensions for some birds in northeastern Brazil. Bulletin of the British Ornithologists’ Club, 115(3): 157-163.; Roda et al., 2003Roda, S.A.; Carlos, C.J. & Rodrigues, R.C. 2003. New and noteworthy records for some endemic and threatened birds of the Atlantic Forest of north-eastern Brazil. Bulletin of the British Ornithologists’ Club, 123(4): 227-236.; Roda & Pereira, 2006Roda, S.A. & Pereira, G.A. 2006. Distribuição recente e conservação das aves de rapina florestais do Centro Pernambuco. Revista Brasileira de Ornitologia, 14(4): 331-344.; Almeida & Teixeira, 2010Almeida, A.C.C. & Teixeira, D.M. 2010. Aves da Reserva Biológica Guaribas, Mamanguape, Paraíba, Brasil. Revista Nordestina de Biologia, 19(2): 3-14.). Now, we know that L. forbesi is a valid species and relatively common in the PCE (Pereira et al., 2019aPereira, G.A.; Araújo, H.F.P.; Azevedo-Júnior.; S.M.; Angelieri, C.C.S. & Silveira, L.F. 2019a. Distribution, threats and conservation of the White-collared Kite (Leptodon forbesi, Accipitridae), the most threatened raptor in the Neotropics. Papéis Avulsos de Zoologia, 59(28): 1-8. https://doi.org/10.11606/1807-0205/2019.59.28.
https://doi.org/10.11606/1807-0205/2019....
; Lima et al., 2020Lima, R.D.; Tomotani, B.M. & Silveira, L.F. 2020. Colour variation and taxonomy of Picumnus limae Snethlage, 1924 and P. fulvescens Stager, 1961 (Piciformes: Picidae). Journal of Ornithology, 161(2): 491-501. https://doi.org/10.1007/s10336-020-01745-0.
https://doi.org/10.1007/s10336-020-01745...
), and that all alleged records of A. lacernulatus in this region are likely misidentifications of either L. forbesi or Mantled Hawk Pseudastur polionotus.

Piculus chrysochloros

A record from the Murici Ecological Station identified as being of this species (Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.) is a confusion with P. flavigula. Occurrence in the state, however, is not unlikely, but in the Caatinga westwards.

Pyrrhura cruentata and Dendroma rufa

In 1865, a group of scientists from the Museum of Comparative Zoology (MCZ) embarked for Brazil in an expedition to study the country’s fauna and flora (Dick, 1977Dick, M.M. 1977. Stations of the Thayer Expedition to Brazil 1865-1866. Breviora, 444: 1-37.). Newton Dexter, a member of the expedition, collected bird specimens in the state of Bahia for two or three weeks, and after in Maceió, Alagoas, where he stayed only one day (Agassiz, 1868Agassiz, L. 1868. A journey in Brazil. Boston, Ticknor and Fields.: chapter IV). Among the specimens from this expedition in the MCZ bird collection, twenty have “Maceió, Alagoas” and none has “Bahia” as the locality of collection on their labels. Two of these specimens, namely a Pyrrhura cruentata (MCZ 7251) and a Dendroma rufa (MCZ 7242), called our attention because Maceió is far from the known northern limits of these species in Brazil. Other noteworthy species, considering that they may have been collected in Maceió, include Odontophorus capueira and Chelidoptera tenebrosa. Unfortunately, we were not able to ascertain whether these specimens were really collected in Alagoas and we believe that the assignment of all of them to Alagoas instead of Bahia is probably due to clerical error.

Pipra fasciicauda

The species has been reported for Alagoas in some reference works (Ridgely & Tudor, 1994Ridgely, R.S. & Tudor, G. 1994. The birds of South America . Volume 2 (The Suboscine Passerines ). Austin, University of Texas Press., 2009Ridgely, R.S. & Tudor, G. 2009. Field guide to the songbirds of South America: the passerines. Austin, University of Texas Press.; Haffer, 1997Haffer, J. 1997. Contact zones between birds of southern Amazonia. Ornithological Monographs, 48: 281-305. https://doi.org/10.2307/40157539.
https://doi.org/10.2307/40157539...
; Snow, 2004Snow, D.W. 2004. Family Pipridae. In: del Hoyo, J.; Elliott, A. & Christie, D.A. Handbook of theBirds of the World. Volume 9: Cotinga s to Pipits and Wagtails. Barcelona, Lynx Edicions. p. 110-169.) without any evidence regarding its alleged occurrence in the state. As already noted by Albano & Girão (2008Albano, C. & Girão, W. 2008. Aves das matas úmidas das serras de Aratanha, Baturité e Maranguape, Ceará. Revista Brasileira de Ornitologia, 16(2): 142-154.) and Kirwan & Green (2012Kirwan, G.M. & Green, G. 2012. Cotingas and manakins. London, Christopher Helm.), the alleged occurrence of the Band-tailed Manakin in Alagoas lacks evidence to be credible and is likely erroneous.

Myiornis auricularis

A sound-recording from the Murici Ecological Station formerly identified as being of this species (XC 284000; J. Minns) was cited in an article (Ruiz-Esparza et al., 2018Ruiz-Esparza, J.; Ruiz-Esparza, D.P.B.; Beltrão-Mendes, R. & Ferrari, S.F. 2018. Expansion of the known range of Myiornis auricularis (Aves: Passeriformes) in the Atlantic Forest of northeastern Brazil. Neotropical Biology and Conservation, 13(2): 177-182. https://doi.org/10.4013/nbc.2018.132.10.
https://doi.org/10.4013/nbc.2018.132.10...
), constituting the only mention of Myiornis auricularis for the state. The animal in this sound-recording, however, is in fact a frog (Pristimantis ramagii; Marcos Dubeux pers. comm.).

Conopias trivirgatus

The species was mentioned in a bird list from Piaçabuçu without any details (Cabral et al., 2006Cabral, S.A.S.; Azevedo-Júnior, S.M. & Larrazábal, M.A. 2006. Levantamento das aves da Área de Proteção Ambiental de Piaçabuçu, no litoral de Alagoas, Brasil. Ornithologia, 1(2): 161-167.). This record is likely a misidentification of the regionally common Social Flycatcher Myiozetetes similis.

Hylophilus pectoralis

Alleged record for this species in Alagoas (Pinto & Camargo, 1961Pinto, O.M.O. & Camargo, E.A. 1961. Resultados ornitológicos de quatro recentes expedições do Departamento de Zoologia ao nordeste do Brasil, com a descrição de seis novas subespécies. Arquivos de Zoologia do Estado de São Paulo, 11: 193-284.) is a misidentification for Gray-eyed Greenlet H. amaurocephalus (Pacheco et al., 2011Pacheco, J.F.; Olmos, F.; Macarrão, A.; Gagliardi, R.L.; Parrini, R.; Cohn-Haft, M. & Braz, V.S. 2011. Revisão da distribuição do vite-vite-de-cabeça-cinza Hylophilus pectoralis (Passeriformes: Vireonidae), com notificação de sua ocorrência no Triângulo Mineiro e noroeste de São Paulo. Revista Brasileira de Ornitologia, 19(3): 332-342.).

Tachycineta leucorrhoa

A single undocumented record in Alagoas (Silveira et al., 2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.) is likely a misidentification of White-winged Swallow Tachycineta albiventer. Although T. leucorrhoa is known to occur in extreme northeastern Brazil (Sagot-Martin et al., 2020Sagot-Martin, F.; Lima, R.D.; Pacheco, J.F.; Irusta, J.B.; Pichorim, M. & Hassett, D.M. 2020. An updated checklist of the birds of Rio Grande do Norte, Brazil, with comments on new, rare, and unconfirmed species. Bulletin of the British Ornithologists’ Club, 140(3): 218-298. https://doi.org/10.25226/bboc.v140i3.2020.a2.
https://doi.org/10.25226/bboc.v140i3.202...
), and thus its occurrence in the state would not be unexpected, the putative Alagoas record was near a large water reservoir, typical habitat of the regionally much commoner T. albiventer, which is absent in Silveira et al.’s (2003aSilveira, L.F. ; Olmos, F. & Long, A.J. 2003a. Birds in Atlantic Forest fragments in north-east Brazil. Cotinga, 20: 32-46.) list.

Sporophila ardesiaca

Recent records in the state (e.g., WA 3870941; C. Almeida) are likely of cagebirds inappropriately released by the environmental police in the region, since the species is known to be traded on the local black market (Lopes & Freitas, 2017Lopes, A.C.P.A. & Freitas, M.A. 2017. Anomalias cromáticas em aves provenientes do tráfico de animais silvestres em Alagoas, Brasil. Atualidades Ornitológicas, 198: 42-46.) and had never been recorded in the region.

Sporophila caerulescens

Recent records in the states of Alagoas (e.g., WA 4446358; A. Rodrigues) and Pernambuco (e.g., WA 2394408; C. Gussoni) are likely of cagebirds inappropriately released in the region, since the species is known to be traded on the local black market (Pagano et al., 2009Pagano, I.S.A.; Sousa, A.E.B.A.; Wagner, P.G.C. & Ramos, R.T.C. 2009. Aves depositadas no Centro de Triagem de Animais Silvestres do IBAMA na Paraíba: uma amostra do tráfico de aves silvestres no estado. Ornithologia, 3(2): 132-144.; Licarião et al., 2013Licarião, M.R.; Bezerra, D.M.M. & Alves, R.R.N. 2013. Wild birds as pets in Campina Grande, Paraíba State, Brazil: an ethnozoological approach. Anais da Academia Brasileira de Ciências, 85(1): 201-213. https://doi.org/10.1590/S0001-37652013000100011.
https://doi.org/10.1590/S0001-3765201300...
) and had never been recorded in the region.

Sporophila maximiliani

We were unable to trace any records from Alagoas. Therefore, we consider the putative occurrence of this species in the state mentioned by Sick (1997Sick, H. 1997. Ornitologia brasileira. Rio de Janeiro, Editora Nova Fronteira.) to be speculative. See the species’ range based on documentary evidence in Ubaid et al. (2018Ubaid, F.K.; Silveira, L.F. ; Medolago, C.A.; Costa, T.V.; Francisco, M.R.; Barbosa, K.V. & Junior, A.D. 2018. Taxonomy, natural history, and conservation of the Great-billed Seed-Finch Sporophila maximiliani (Cabanis, 1851) (Thraupidae, Sporophilinae). Zootaxa, 4442(4): 551-571. https://doi.org/10.11646/zootaxa.4442.4.4.
https://doi.org/10.11646/zootaxa.4442.4....
).

Edited by

Edited by: Carlos José Einicker Lamas.

Publication Dates

  • Publication in this collection
    03 Oct 2022
  • Date of issue
    2022

History

  • Received
    16 Mar 2022
  • Accepted
    12 May 2022
  • Published
    27 May 2022
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E-mail: einicker@usp.br