Updates and Corrections—October 2025 (Page 4)

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English Name Changes

This section includes those English name changes not due to a taxonomic or group change, which are covered in Splits, Lumps, and Groups.

Change English name of Trogon caligatus from Gartered Trogon to Gartered Violaceous Trogon

Details: Clements v2025 taxon 9543–9546

The number of Neotropical trogons of the genus Trogon with similar English names has increased considerably with recent splits. This has heightened the potential for confusion and compounded the lack of apt names for daughter species. To minimize these problems, help indicate relationships, and tie new names to earlier ones, the group name “Violaceous” has been adopted by SACC and thus here for all three component species of the recently split “Violaceous Trogon” Trogon violaceus. This issue has not yet been considered by NACC.

Change English name of Trogon violaceus from Guianan Trogon to Guianan Violaceous Trogon

Details: Clements v2025 taxon 9547

See Trogon caligatus, above.

Change English name of Trogon ramonianus from Amazonian Trogon to Amazonian Violaceous Trogon

Details: Clements v2025 taxon 9548–9550

See Trogon caligatus, above. 

Change English name of Trogon tenellus from Northern Black-throated Trogon to Graceful Black-throated Trogon

Details: Clements v2025 taxon 9560

The English name Northern Black-throated Trogon for the recently split Trogon tenellus was used in Clements et al. in 2023 and 2024. However, NACC (Remsen and Chesser 2025, 2025-B-08) more recently voted to split the “Black-throated Trogon” Trogon rufus complex and to adopt the English name Graceful Black-throated Trogon for the daughter species Trogon tenellus, hence the change here.

Change English name of Upupa epops from Eurasian Hoopoe to Common Hoopoe

Details: Clements v2025 taxon 9604–9614

Although the name Eurasian Hoopoe has long been used by the Clements checklist for Upupa epops, this seems to be at least partly a holdover from when the African taxa were considered a separate species, Upupa africana. Given that the Madagascar Hoopoe Upupa marginata is clearly a separate species, based largely on its very different voice, when all Upupa taxa except marginata are included in a single species, it is untenable to reuse the earlier name “Hoopoe”, which also is part of the group name of some members of the Phoeniculidae and even members of Alaudidae. Largely because most of Africa is not part of Eurasia, NACC (Rasmussen and Iliff 2025, 2025-D-03) voted to use the name Common Hoopoe for the inclusive Upupa epops (Chesser et al. 2025). (Note that, while Upupa epops is only a vagrant to the NACC region, the committee votes on such species as well.) The name Common Hoopoe, while imperfect for various reasons, well reflects its wide familiarity and status over large areas, and also has the advantage of long use in several sources, including BirdLife International, and now has been adopted by AviList Core Team (2025) as well. 

Change English name of Deconychura typica from Piping Woodcreeper to Piping Long-tailed Woodcreeper

Details: Clements v2025 taxa 14632–14635

As with Neotropical trogons, the always-speciose woodcreepers (Family Furnariidae) have undergone considerable species-limits revision recently, with more almost certain to follow. Since the vast majority of woodcreeper species are similar in appearance, English names have proven a particular challenge, especially when new and apt ones are required. When Long-tailed Woodcreeper Deconychura longicaudata was split into three species, ultimately vocalization-based names were adopted for these infrequently seen, more often heard taxa (Spencer and Beck 2024, proposal 1025.1). As a result of proposal 1025.2 (Remsen 2025,), the group name “Long-tailed” has been added to help indicate group membership and tie the new names to the former one for the widespread parent species “Long-tailed Woodcreeper” Deconychura longicaudata. 

Change English name of Deconychura longicaudata from Whistling Woodcreeper to Whistling Long-tailed Woodcreeper

Details: Clements v2025 taxon 14636

See Deconychura typica, above.

Change English name of Deconychura pallida from Mournful Woodcreeper to Mournful Long-tailed Woodcreeper

Details: Clements v2025 taxon 14637

See Deconychura typica, above.

Change English name of Lichmera incana from Dark-brown Honeyeater to Gray-eared Honeyeater

Details: Clements v2025 taxon 18085

The name long in use for Lichmera incana of New Caledonia and Vanuatu by the Clements Checklist and various other sources, Dark-brown Honeyeater, was deemed misleading, as the bird normally looks mostly rather pale olive overall, much likely many of its congeners, and the name “Dark-brown” is hardly apt. Fortunately, the IOC-WBL checklist (Gill and Donsker and Gill et al., all versions), Dickinson and Christidis (2014), and BirdLife International (from version 9) have all used “Grey-eared Honeyeater” (see Avibase for further details), which is more appropriate as Lichmera incana normally does show a distinctly gray ear patch. The name Silver-eared Honeyeater has also been applied, including in early Clements versions, as adopted from Morony et al. (1975) as well as Howard and Moore (1991), but this name is in wide use for Lichmera alboauricularis of New Guinea, called “White-eared Honeyeater” in Clements (1981, the first edition). The most widely used and more apt name Grey-eared Honeyeater was thus adopted by AviList Core Team (2025), and as the variant spelling Gray-eared Honeyeater in Clements et al. (2025) (in line with other spellings of the word grey/gray in this source).

Change English name of Pseudobias wardi from Ward’s Flycatcher to Ward’s Vanga

Details: Clements v2025 taxon 19994

Madagascar taxon Pseudobias wardi has long been known as either Ward’s Flycatcher or Ward’s Shrike-Flycatcher, but it is now known to be neither a true flycatcher, nor closely related to shrikes, or even particularly shrike-like. Multiple phylogenetic studies (e.g. Johanssen et al. 2008, Jønsson et al. 2011) have established that Pseudobias is a core member of the family Vangidae, which has however now been expanded beyond the Malagasy region to include certain African and Asian taxa. Thus the family now contains other taxa with some variant of the word “flycatcher” in their names, the “shrike-flycatchers” Megabyas and Bias of Africa, and the “flycatcher-shrikes” Hemipus of tropical Asia. However, Dickinson and Christidis (2014) previously adopted the name Ward’s Vanga for Pseudobias, which helps to minimize confusion by emphasizing its true relationships, and has thus been adopted by AviList Core Team (2025) and Clements et al. (2025). Furthermore, many other languages have incorporated the word “vanga” into the name of this species (see Avibase, which uses “Ward’s Flycatcher-Vanga”).

Change English name of Zavattariornis stresemanni from Stresemann’s Bush-Crow to Ethiopian Bushcrow

Details: Clements v2025 taxon 21479

The English name Ethiopian Bushcrow, adopted fairly recently for the monotypic, aberrant southern Ethiopian endemic Zavattariornis stresemanni is adopted by AviList Core Team (2025) and Clements et al. (2025). Although Zavattariornis has been shown to be a member of the Corvidae (e.g., Jønsson et al. 2016), it is evidently not especially closely related to true crows of the genus Corvus, and thus the unhyphenated group name Bushcrow, rather than Bush-Crow or Bush Crow, is adopted. 

Change English name of Cincloramphus mariae from New Caledonian Grassbird to New Caledonian Thicketbird

Details: Clements v2025 taxon 23896

The closest relatives of the New Caledonian Cincloramphus mariae (Alstrom et al. 2018), the clade from the Solomon Islands, Vanuatu, and Fiji, were all called “thicketbirds” in Clements et al. (2024).  Previously known in the Clements series as New Caledonian Grassbird, and earlier as New Caledonian Grass Warbler, C. mariae has been called New Caledonian Thicketbird by the IOC-WBL since v.1, as well as by Dickinson and Christidis (2014), and recent versions of BirdLife International checklists. It occurs in both habitat types, but it is considered that its group affinities are best emphasize by the change to New Caledonian Thicketbird, as in AviList Core Team (2025). Members of other clades of the genus Cincloramphus, as presently comprised, retain the name “grassbird,” while others have long been known by the name “songlark.”

Change English name of Copsychus leggei from Sri Lankan Shama to Sri Lanka Shama 

Details: Clements v2025 taxon 29026

The Sri Lankan taxon of Copsychus shama, Copsychus leggei (Whistler, 1941), has until recently not usually been recognized at the species level, as suggested by its relatively late description, and then as a subspecies of Copsychus malabaricus. Its English name undergoes this minor change to conform with the names of 18 other species in Clements with the species names of “Sri Lanka”, and to align with AviList Core Team (2025).

Change English name of Indigobirds Family Viduidae to Whydahs and Indigobirds Family Viduidae

Details: Clements v2025 taxa 31442–31478

The more informative and inclusive group name Whydahs and Indigobirds is adopted for Family Viduidae, appropriately since almost half of the species in the family are clearly whydahs, and not indigobirds.

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Peters, J.L. (1940). Check-list of Birds of the World. Volume 4. Harvard University Press, Cambridge, Massachusetts, USA.

Peters, J.L. (1935). Check-list of Birds of the World. Volume 5. Harvard University Press, Cambridge, Massachusetts, USA.

Peters, J.L. (1948). Check-list of Birds of the World. Volume 6. Harvard University Press, Cambridge, Massachusetts, USA.

Peters, J.L. (1951). Check-list of Birds of the World. Volume 7. Museum of Comparative Zoology, Cambridge, Massachusetts, USA.

Phelps, W.H., and E.T. Gilliard (1940). Six new birds from the Perijá Mountains of Venezuela. American Museum Novitates No. 1100. American Museum of Natural History, New York, New York, USA.

Pilgrim, M.A. (2010). An Investigation into the Taxonomic Status of Amazona autumnalis lilacina Using a Multidisciplinary Approach. PhD Thesis, Liverpool John Moores University, Liverpool, UK.

Pratt, H.D. (2020). Species limits and English names in the genus Gygis (Laridae). Bulletin of the British Ornithologists’ Club 140: 195–208.

Pratt, H.D. (2025a). Revise the taxonomy of the genus Gygis: (b) treat G. candida and G. microrhyncha as separate species from White Tern G. alba. Proposal 2025-A-3b to N&MA Classification Committee, https://americanornithology.org/wp-content/uploads/2025/02/2025-A.pdf

Pratt, H.D. (2025b). Change current taxonomy of the genus Gygis: A) recognize subfamilies Gyginae and Anoinae within Laridae; B) split White Tern (Gygis alba) into three species; and C) revise English names for Gyginae. Proposal (1032) to South American Classification Committee. https://www.museum.lsu.edu/~Remsen/SACCprop1032.htm

Price-Waldman, R.M. (2019). Phylogenomics, Trait Evolution, and Diversification of the Tanagers (Aves, Thraupidae). M.S. Thesis, San Diego State University, San Diego, California, USA.

Quintela, M., S. Berlin, B. Wang, and J.Höglund (2010). Genetic diversity and differentiation among Lagopus lagopus populations in Scandinavia and Scotland: evolutionary significant units confirmed by SNP markers. Molecular Ecology 19: 2380–2393.

Ramírez, I., V.H. Paiva, D. Menezes, I. Silva, R.A. Phillips, J.A. Ramos, and S. Garthe (2013). Year-round distribution and habitat preferences of the Bugio petrel. Marine Ecology Progress Series 476: 269–284.

Ramírez-Barrera, S.M., B.E. Hernández-Baños, J.P. Jaramillo-Correa, and J. Klicka (2018). Deep divergence of Red-crowned Ant Tanager (Habia rubica: Cardinalidae), a multilocus phylogenetic analysis with emphasis in Mesoamerica. PeerJ 6: e5496. DOI: 10.7717/peerj.5496

Ramírez-Barrera, S.M., J.A. Velasco, T. Orozco-Téllez, A M. Vázquez-López, and B.E. Hernández-Baños (2019). What drives genetic and phenotypic divergence in the Red-crowned Ant Tanager (Habia rubica, Aves: Cardinalidae), a polytypic species? Ecology and Evolution 9: 12339–12352. DOI: 10.1002/ece3.5742

Rand, A.L. (1967). Family Nectariniidae, Sunbirds. Check-list of Birds of the World. Volume 12. Museum of Comparative Zoology, Cambridge, Massachusetts, USA.

RAOU (1926). Official Checklist of the Birds of Australia. RAOU, Melbourne, Australia.

Rasmussen, P.C. (1994). Geographic variation in morphology and allozymes of South American Imperial Shags. The Auk 111(1): 143–161.

Rasmussen, P.C., and J.C. Anderton (2005). Birds of South Asia. The Ripley Guide: Volume 2: Attributes and Status. Lynx Edicions and National Museum of Natural History, Smithsonian Institution, Barcelona, Spain.

Rawlence, N., A. Salis, H. Spencer, J. Waters, L. Scarsbrook, K. Mitchell, R. Phillips, L. Calderón, T. Cook, C. Bost, L. Dutoit, T. King, J. Masello, L. Nupen, P. Quillfeldt, N. Ratcliffe, P. Ryan, C. Till, and M. Kennedy (2022). Rapid radiation of Southern Ocean shags in response to receding sea ice. Journal of Biogeography 49: 942–953. 10.1111/jbi.14360. 

Reeve, A.H., M.P.K. Blom, P.Z. Marki, R. Batista, U. Olsson, V.N. Edmark, M. Irestedt, and K.A. Jonsson (2022). The Sulawesi Thrush (Cataponera turdoides) belongs to the genus Turdus. Zoologica Scripta 51: 32–40. 

Reeve, A.H., G. Graham, J.M. Pujolar, B.T. Smith, B. Petersen, U. Olsson, T. Haryoko, B. Koane, G. Maiah, M.P.K. Blom, P.G.P. Ericson, M. Irestedt, F. Racimo, and K.A. Jønsson (2023).  Population genomics of the Island Thrush elucidates one of earth’s great archipelagic radiations. Evolution Letters 7(1): 24–36. https://doi.org/10.1093/evlett/qrac006

Remsen Jr., J.V. (2022). Recognize Trogon ambiguus (Coppery-tailed Trogon) as a separate species from Trogon elegans (Elegant Trogon). Proposal 2022-A-7 to N&MA Classification Committee, https://americanornithology.org/wp-content/uploads/2022/04/2022-A-final.pdf

Remsen, J.V., Jr., J.I. Areta, E. Bonaccorso, S. Claramunt, D.F. Lane, L.N.Naka, M.B. Robbins, F.G. Stiles, and K.J. Zimmer. Version [Oct 2025]. A classification of the bird species of South America. Museum of Natural Science, Louisiana State University. http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm

Restall, R., C. Rodner, and M. Lentino (2006). Birds of Northern South America. An Identification Guide. Volume 1. Christopher Helm, London, UK.

Rheindt, F.E., L. Christidis, and J.A. Norman (2008). Habitat shifts in the evolutionary history of a Neotropical flycatcher lineage from forest and open landscapes. BMC Evolutional Biology 8: 1193.

Ribas, C.C., L. Joseph, and C.Y. Miyaki (2006). Molecular systematics and patterns of diversification in Pyrrhura (Psittacidae), with special reference to the picta-leucotis complex. The Auk 123(3): 660–680.

Ribas, C.C., A. Aleixo, C. Gubili, F.M. d’Horta, R.T. Brumfield, and J. Cracraft (2018). Biogeography and diversification of Rhegmatorhina (Aves: Thamnophilidae): Implications for the evolution of Amazonian landscapes during the Quaternary. Journal of Biogeography 45: 917–928.

Ridgely, R.S. (1976). A Guide to the Birds of Panama. Princeton University Press, Princeton, New Jersey, USA.

Ridgely, R.S., and G. Tudor (1989). The Birds of South America, Volume 1. The Oscine Passerines. University Texas Press, Austin, Texas, USA.

Ridgely, R.S., and G. Tudor (1994). The Birds of South America, Volume 2. The Suboscine Passerines. University Texas Press, Austin, Texas, USA.

Ridgely, R.S., and P.J. Greenfield (2001). The Birds of Ecuador. Cornell University Press, Ithaca, New York, USA.

Ridgway, R. (1907). The birds of North and Middle America, part 4. Bulletin of the United States National Museum 50: 1–973. (not seen)

Ripley, S.D. (1964). Subfamily Turdinae, Thrushes. In Mayr, E. and R.A. Paynter, Jr. (editors). Check-list of Birds of the World. Volume 10. Museum of Comparative Zoology, Cambridge, Massachusetts, USA.

Robb, M. (2015). Undiscovered Owls: A Sound Approach Guide. The Sound Approach, Poole, Dorset, UK.

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Ruokonen, M., K. Litvin, and T. Aarvak (2008). Taxonomy of the Bean Goose–Pink-footed Goose. Molecular Phylogenetics and Evolution 48(2): 554–562.

Russello, M.A., and G. Amato (2004). A molecular phylogeny of Amazona: implications for Neotropical parrot biogeography, taxonomy, and conservation. Molecular Phylogenetics and Evolution 30(2): 421–437. doi: 10.1016/s1055-7903(03)00192-1

Russello, M.A., M.L. Avery, and T.F. Wright (2008). Genetic evidence links invasive Monk Parakeet populations in the United States to the international pet trade. BMC Evolutionary Biology 8: 217.

Salgado-Ortiz, J., P.P. Marra, T.S. Sillett, and R.J. Robertson (2008). Breeding ecology of the Mangrove Warbler (Dendroica petechia bryanti) and comparative life history of the Yellow Warbler subspecies complex. The Auk 125(2): 402–410.

Salter, J., P. Hosner, W.L.E. Tsai, J.E. McCormack, E.L. Braun, R.T. Kimball, R.T. Brumfield, and B.C. Faircloth (2021). Historical specimens and the limits of subspecies phylogenomics in the New World quails (Odontophoridae). Molecular Phylogenetics and Evolution 175: 107559. doi: 10.1016/j.ympev.2022.107559.

Salvadori, T., and E. Festa (1899). Viaggio del Dr. Enrico Festa nell’Ecuador. XXI. Uccelli. Parte seconda – Passeres clamatores. Bollettino dei Musei di Zoologia ed Anatomia Comparata della R. Università di Torino 15 (362): 1–34. (not seen)

Sánchez-González, L.A., A.G. Navarro-Sigüenza, N.K. Krabbe, J. Fjeldså, and J. García-Moreno (2015). Diversification in the Andes: the Atlapetes brush-finches. Zoologica Scripta 44: 135–152.

Sánchez-González, L.A., H. Cayetano, D.A. Prieto-Torres, O.R. Rojas-Soto, and A.G. Navarro-Sigüenza (2023). The role of ecological and geographical drivers of lineage diversification in the Squirrel Cuckoo Piaya cayana in Mexico: a mitochondrial DNA perspective. Journal of Ornithology 164: 37–53. https://doi.org/10.1007/s10336-022-02008-w

Sánchez-Nivicela, M., J. Avendaño, J.C. Sánchez-Nivicela, A. Torres, J. Fuchs, B. Bird, and E. Bonaccorso (2021). A taxonomic assessment of Chlorospingus flavopectus phaeocephalus and Chlorospingus semifuscus (Passeriformes: Passerellidae), including the description of a new subspecies. Zootaxa 5057(2): 151–180.  10.11646/zootaxa.5057.2.1

Sandoval, L., C. Méndez, and D.J. Mennill (2016). Description of the vocalizations and vocal behaviour of White-eared Ground-Sparrows (Melozone leucotis) during the breeding season. Journal of Ornithology 157: 1–12. 

Sandoval, L., P.-P. Bitton, A.D. Demko, S.M. Doucet, and D.J. Mennill (2017). Phenotypic variation and vocal divergence reveals a species complex in White-eared Ground-Sparrows (Cabanis) (Aves: Passerellidae). Zootaxa 4291(1): 155–170.

Sangster, G., J.M. Collinson, G.M. Kirwan, A.G. Knox, B.J. McMahon, D. Parkin, M. Schweizer, and J. Höglund (2022). The taxonomic status of Red Grouse. British Birds 115: 28–⁠38.

Santana, A., S.M. Silva, N.F. Do Nascimento, I. Sampaio, and A. Aleixo (2021). Phylogeography of the Dendrocolaptes picumnus (Aves: Dendrocolaptidae) species complex: new insights on the diversification of a trans-American lineage. Journal of Ornithology 166(4): 1057–1070.

Sari, E.H.R., and P.G. Parker (2012). Understanding the colonization history of the Galápagos Flycatcher (Myiarchus magnirostris). Molecular Phylogenetics and Evolution 63: 244–254.

Schodde, R., and I.J. Mason (1999). The Directory of Australian Birds: a Taxonomic and Zoogeographic Atlas of the Biodiversity of Birds in Australia and its Territories. Volume 1. Passerines. CSIRO Publishing, Collingwood, Victoria, Australia.

Schulenberg, T.S., D.F. Stotz, D.F. Lane, J.P. O’Neill, T.A. Parker III, and A.B. Egg (2007). Birds of Peru. Princeton Field Guides. Princeton University Press, Princeton, New Jersey, USA.

Sealy, S.G., A.J. Banks, and J.F. Chace (2000). Two subspecies of Warbling Vireo differ in their responses to cowbird eggs. Western Birds 113: 190–194.

Sewell, K., R. Kelsey, and T.P. Hahn (2004). Discrete variants of Evening Grosbeak flight calls. The Condor 106: 161–165.

Shakya, S.B., J. Fuchs, J.-M. Pons, and F.H. Sheldon (2017). Tapping the woodpecker tree for evolutionary insight. Molecular Phylogenetics and Evolution 116: 182–191. 

Short, L.L., and J.F.M. Horne (2001). Toucans, Barbets, and Honeyguides. Oxford University Press, Oxford, UK.

Sibley, C.G. (1996). Birds of the World: Version 2.0. Thayer Birding Software, Naples, Florida, USA.

Siegel-Causey, D., and C. Lefevre (1989). Holocene records of the Antarctic Shag (Phalacrocorax [Notocarbo] bransfieldensis) in Fuegian waters. The Condor 91: 408–415.

Sin, Y.C.K., J.A. Eaton, R.O. Hutchinson, and F.E. Rheindt (2022). Re-assessing species limits in a morphologically cryptic Australasian kingfisher lineage (Coraciiformes: Halcyonidae) using bioacoustic data. Biological Journal of the Linnean Society 136(4): 489–505. https://doi.org/10.1093/biolinnean/blac047

Singh, A., S.K. Gupta, P. Alström, D. Mohan, D.M. Hooper, R.S. Kumar, D. Bhatt, P. Singh, and T.D. Price (2020). Taxonomy of cryptic species in the Cyornis rubeculoides complex in the Indian subcontinent. Ibis 162: 924–935.

Slager, D.L., and J. Klicka (2014).  Polyphyly of Hylophilus and a new genus for the Tawny-crowned Greenlet (Aves: Passeriformes: Vireonidae).  Zootaxa 3884: 194–196.

Slager, D.L., C.J. Battey, R.W. Bryson, Jr., G. Voelker, and J. Klicka (2014). A multilocus phylogeny of a major New World avian radiation: The Vireonidae.  Molecular Phylogenetics and Evolution 80: 95–104.

Smith, B.T., J.E. McCormack, A.M. Cuervo, M.J. Hickerson, A. Aleixo, C.D. Cadena, J. Pérez-Emán, C.W. Burney, X. Xie, M.G. Harvey, B.C. Faircloth, T.C. Glenn, E.P. Derryberry, J. Prejean, S. Fields, and R.T. Brumfield (2014). The drivers of tropical speciation. Nature 515: 406–409.

Smith, B.T., J. Merwin, K.L. Provost, G. Thom, R.T. Brumfield, M. Ferreira, W.M. Mauck, R.G. Moyle, T.F. Wright, and L. Joseph (2023). Phylogenomic analysis of the parrots of the world distinguishes artifactual from biological sources of gene tree discordance. Systematic Biology 72(1): 228–241. https://doi.org/10.1093/sysbio/syac055

Smith, C.E., and C.E. Filardi (2007). Patterns of molecular and morphological variation in some Solomon Island land birds. The Auk 124(2): 479–493.

Spencer, A. (2012). Identifying Eastern and Western Warbling Vireos. http://earbirding.com/blog/archives/3667 

Steadman, D.W. (2006). Extinction and Biogeography of Tropical Pacific Birds. University of Chicago Press, Chicago, Illinois, USA. 

Storer, R.W. (1970). Subfamily Thraupinae, Tanagers. Volume 13. Check-list of Birds of the World. Museum of Comparative Zoology, Cambridge, Massachusetts, USA.

Tan, H.Z., E.Y.X. Ng, Q. Tang, G.A. Allport, J.J.F.J. Jansen, P.S. Tomkovich, and F.E. Rheindt (2019). Population genomics of two congeneric Palaearctic shorebirds reveals differential impacts of Quaternary climate oscillations across habitat types. Scientific Reports 9: 18172.

Theron, E., K. Hawkins, E. Bermingham, R.E. Ricklefs, and N.I. Mundy (2001). The molecular basis of an avian plumage polymorphism in the wild: A melanocortin-1-receptor point mutation is perfectly associated with the melanic plumage morph of the Bananaquit, Coereba flaveola. Current Biology 11(8): 550–557. https://doi.org/10.1016/S0960-9822(01)00158-0.

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Thibault, J.-C., and A. Cibois (2017). Birds of Eastern Polynesia: a Biogeographic Atlas. Lynx Edicions, Barcelona, Spain.

Tonetti, V.R., R. Bocalini, L.F. Silveira, and G. Del-Rio (2017). Taxonomy and molecular systematics of the Yellow-green Grosbeak Caryothraustes canadensis (Passeriformes: Cardinalidae). Revista Brasileira de Ornitologia 25(3): 176–189.

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van Els, P., M.G. Harvey, J.M.G. Capurucho, R.T. Brumfield, B.M. Whitney, and J.F. Pacheco (2023). Systematics of the Neopelminae (Aves: Passeriformes: Pipridae) with description of a new genus. Zootaxa 5361: 135–141.

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Future Updates

The next annual revision that incorporates revisions to the taxonomy and nomenclature of the eBird/Clements Checklist is expected to be released in the fall of 2026, around the time of the release of AviList Core Team (2026), by which time we expect to complete the alignment process.

Acknowledgments

Please continue to report potential errors, corrections, and suggestions for improvement of the eBird/Clements Checklist to cornellbirds@cornell.edu. Errors and oversights easily slip through the cracks, so we greatly appreciate you letting us know of any that you find. If you can send a supporting reference or citation when reporting a potential change, that’s even more helpful. Thanks for whatever you can do!

Special thanks go to our many collaborators who carefully reviewed advance versions of this checklist, though of course any remaining errors are our responsibility. We especially acknowledge Terry Chesser, for providing advance copies of work in progress, and to both Terry and to Van Remsen for their underappreciated roles in chairing regional classification committees (NACC and SACC, respectively). Special thanks also go to the hard-working members of NACC and SACC, who wrote and reviewed extra proposals in alignment with the WGAC/AviList process. David Donsker, co-Managing Editor of the IOC World Bird List, has played a huge role in alignment of the Clements and IOC lists, as well as on AviList. And we are beyond grateful to members of AviList for scientific input and discussions, specifically Juan Ignacio (Nacho) Areta, Paul Donald, Robert Dowsett, Frank Rheindt, and Richard Schodde who join Rasmussen, Schulenberg, Donsker, and Chesser in the Taxonomic group, Santiago Claramunt and Alan Peterson join Donald, Dowsett, Rasmussen, and Rheindt on the nomenclatural group, and Donsker leads the bibliographic group. Our species-level updates this year have specifically aligned with AviList decisions. Max Kirsch deserves special thanks for his incredibly detailed review of AviList, which also benefits the Clements Checklist. Don Roberson, Juan Freile Ortiz, and Stephen Garnett contributed a great many distributional statements that enabled us to provide these for every species, for the first time ever.

We also thank the following for their help in providing helpful comments on the eBird/Clements Checklist and related issues:

Mark Adams, Roger Ahlman, Margaret and Richard Alcorn, Desmond Allen, Gary Allport, Per Alström, Mike Andersen, Natalya Andreyenkova, Nick Anich, Juan Ignacio (Nacho) Areta, Christian Artuso, Gregory Askew, Nick Athanas, Gustave Axelson, Louis Backstrom, Stephen F. Bailey, Dave Bakewell, Bertrand Jno Baptiste, Bruce Beehler, Tom Benson, Alex Berryman, Louis Bevier, David Bishop, Peter Boesman, Elisa Bonaccorso, Alex Bond, Nik Borrow, James Bradley, Matt Brady, Peter Brick, Adrian Burke, Kevin J. Burns, Jack Bushong, Daniel Cadena, Christian Camerota, Oscar Campbell, Peter Capaniolo, Heidi Ware Carlisle, Blaine Carnes, Eric Carpenter, Mike Charnoky, Jamie Chavez, Les Christidis, Miyoko Chu, Carla Cicero, Paul Clapham, Santiago Claramunt, Mario Cohn-Haft, Mich Coker, Nigel Collar, Jacob Cooper, Andrew Core, John Croxall, Diego Cueva, Lystra Culzac-Wilson, Jenna Curtis, Ian Davies, Nico de Bruyn, Glaucia Del-Rio, Edward C. Dickinson, Paul Donald, Paul Doniol-Valcroze, Robert Dowsett, Terry J. Doyle, Andrew Dreelin, Robert Driver, Paul Dufour, Jon Dunn, Pete Dunten, James Eaton, Andy Elliott, Josh Engel, Kent Fiala, John Fitzpatrick, Ted Floyd, Hugo Foxonet, Vaughan Francis, Marty Freeland, Benjamin Freeman, Juan Freile Ortiz, Ross and Melissa Gallardy, Stephen Garnett, John Garrett, Kimball Garrett, Jimmie Gaudin, Mengshuai Ge, Brian Gibbons, Mat and Cathy Gilfedder, Frank Gill, Doug Gochfeld, Hector Gómez de Silva, Fabrico Gorleri, Phil Gregory, Alan Grenon, Evan Griffis, Robert Guth, Omar Gutierrez, Matthew Halley, Steve and Angeline Hamberg, Steve Hammond, Cullen Hanks, Lori Hargrove, Blanca E Hernández-Baños, Stratton Hatfield, Adrian Hinkle, Mark Holmgren, Peter Hosner, Steve Howell, Jasdev Imani, Praveen J, Tykee James, Valance James, Gabriel Jamie, Alvaro Jaramillo, Rosa Jímenez, James Jobling, L. Scott Johnson, Oscar Johnson, Isabelle Jollit, Matt Jones, Leo Joseph, Roselvy Juárez, Peter Kaestner, Laura Kammermeier, Sławomir Karpicki, Brooke Keeney, David Kelly, Aiden Kiley, David Kirk, Max Kirsch, Alexander Kirschel, Guy Kirwan, Ethan Kistler, Yann Kolbeinsson, Rutger Koperdraad, Steve Kornfeld, Peter Kovalik, Andrew Kratter, Frank Lambert, Dan Lane, Niels Larsen, Jack Levene, Anthony Levesque, Rafael Lima, Wich’yanan Limparungpatthanakij, Richard Littauer, Irene Liu, Daniel López Velasco, Irby Lovette, Jakub Macháň, Ivan Maggini, Vilikesa Masibalavu, Nicholas Mason, Jay McGowan, Matt Medler, Fernando Medrano, Ryan Merrill, Eliot Miller, Michael Mills, John Mittermeier, Steven Mlodinow, Andre E. Moncrieff, Ethan Monk, Nial Moores, Lily Morello, Yann Muzika, Erica Nol, Janette Norman, Raphaël Nussbaumer, Mark Oberle, Ryan O’Donnell, Scott Olmstead, Angel Ortiz, Ian Owens, Nate Panda, Edward R. Pandolfino, Vicente Pantoja, Neil Paprocki, Tommy Pedersen, Yoav Perlman, Niall Perrins, Shaun Peters, Troy Peters, Alan Peterson, Vitor de Q. Piacentini, Joe Poston, Hugh Powell, Doug Pratt, Thane Pratt, Jose Luis Pushaina, Peter Pyle, David Rankin, Laurent Raty, Nigel Redman, Xabier Remirez, Michael Retter, Frank Rheindt, Colin Richardson, Don Roberson, Mark Robbins, Philip Round, Douglas Russell, Cameron Rutt, George Sangster, Dave Sargeant, James Savage, Jay H. Schnell, Richard Schodde, Fabrice Schmitt, Michael Schrimpf, Allison Schultz, Lin Scott, Glenn Seeholzer, Luke Seitz, Liam Singh, David Slager, Nicholas Sly, Maria Smith, Scott Somershoe, Kasia Someya, Philip Steiner, Mark Stevenson, Bill Stjern, Gary Stiles, Peyton Stone, Sherri Sullivan, Lars Svensson, Laurel Symes, Chris R. Tenney, Glen Tepke, John van Dort, Hein Van Grouw, N. Deans Van Swelm, David Vander Pluym, Frank Willems, Robert Williams, Jessie Williamson, Sheri Williamson, Johnny Wilson, Summer Wilson, Adam Winer, Kevin Winker, Ian Worley, James Yurchenko, Barry Zimmer, Kevin Zimmer, and Frank Zino. And special thanks to Hugh Powell of Cornell Lab of Onithology for making this document available online.

Huge thanks are due also to Wikiaves (https://www.wikiaves.com.br/), with its amazing data and media for Brazilian birds, to BirdLife Australia (https://hanzab.birdlife.org.au/), and to New Zealand Birds Online (https://www.nzbirdsonline.org.nz/). We also extend grateful thanks to the wider community of eBird, Merlin, and BOW users; the many contributors to photo and sound archives whose combined work greatly facilitates taxonomy; the scientists and other authors whose arduous work forms the backbone for new advances, and the astute contributors to the Taxonomy and Nomenclature group on BirdForum. We sincerely apologize to any contributors we may have inadvertently overlooked.

Thanks everyone for your support, and we look forward to your continued feedback.

Pamela C. Rasmussen, Thomas S. Schulenberg, Marshall J. Iliff, Jeff A. Gerbracht, Denis Lepage, Andrew Spencer, Shawn M. Billerman, Brian L. Sullivan, M. L. Smith, and Christopher L. Wood, Cornell Lab of Ornithology.