In December 2019, the International Union for Conservation of Nature (IUCN) listed 460 endangered avian species. Of all evaluated avian species, 4% are listed as endangered. No subpopulations of birds have been evaluated by the IUCN. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered birds are listed separately. There are 683 avian species which are endangered or critically endangered. Additionally 53 avian species (0.48% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed". This is a complete list of endangered avian species evaluated by the IUCN. Where possible, common names for taxa are given while links point to the scientific name used by the IUCN.
Tinamiformes Tinamous
Dwarf tinamou
Anseriformes Ducks, geese, swans, and screamers
Galliformes Landfowl
Apodiformes Hummingbirds and swifts
Otidiformes Bustards
Cuculiformes Cuckoos
Columbiformes Pigeons and doves
Gruiformes Cranes, rails, finfoots, and trumpeters
Podicipediformes Grebes
Charadriiformes Shorebirds and gulls
Eurypygiformes Sunbittern, Kagu
Kagu
Sphenisciformes Penguins
Procellariiformes Petrels, albatrosses, and shearwaters
Ciconiiformes Storks
Suliformes Cormorants and allies
Pelecaniformes Pelicans, ibises, and herons
Accipitriformes
Hawks, eagles, kites, and vultures
Sagittariidae Secretarybird (monotypic)
Secretarybird
Accipitridae Kites, hawks, eagles, and Old World vultures
Strigiformes Owls
Bucerotiformes Hornbills and hoopoes
Piciformes Woodpeckers, toucans, and barbets
Falconiformes Falcons and caracaras
Psittaciformes Parrots
Strigopidae New Zealand parrots
Kea
Cacatuidae Cockatoos
Psittacidae African & New World parrots
Psittaculidae Old World parrots
Passeriformes Passerines
Acanthisittidae New Zealand wrens
New Zealand rock wren
Pittidae Pittas
Furnariidae Ovenbirds
Thamnophilidae Antbirds
Grallariidae Antpittas
Cundinamarca antpitta Jocotoco antpitta
Rhinocryptidae Tapaculos
Tyrannidae Tyrant flycatchers
Cotingidae Cotingas
Tityridae Tityras, becards, and allies
Buff-throated purpletuft
Atrichornithidae Scrubbirds
Noisy scrubbird Rufous scrubbird
Maluridae Australasian wrens
White-throated grasswren Mallee emu-wren
Meliphagidae Honeyeaters
Mao Black-eared miner
Dasyornithidae Bristlebirds
Western bristlebird
Pardalotidae Pardalotes
Forty-spotted pardalote
Malaconotidae Bushshrikes and allies
Vangidae Vangas and allies
Oriolidae Figbirds, Old World orioles, piopios
Silver oriole
Dicruridae Drongos
Grand Comoro drongo Tablas drongo
Monarchidae Monarchs
Corvidae Crows, jays, and allies
Petroicidae Australasian robins
Norfolk Island robin
Paridae Tits and chickadees
Owston's tit
Alaudidae Larks
Pycnonotidae Bulbuls
Brown-cheeked bulbul Streak-breasted bulbul Aceh bulbul
Hirundinidae Swallows and martins
Galápagos martin Bahama swallow
Macrosphenidae Crombecs, African warblers, longbills
Pulitzer's longbill
Acrocephalidae Reed warblers and allies
Locustellidae Grassbirds and allies
Long-legged thicketbird
Cisticolidae Cisticolas and allies
Zosteropidae White-eyes
Pellorneidae Ground babblers
White-throated wren-babbler
Leiothrichidae Laughingthrushes and allies
Hyliotidae Hyliotas
Usambara hyliota
Troglodytidae Wrens
Apolinar's wren Zapata wren
Sittidae Nuthatches
Algerian nuthatch Giant nuthatch White-browed nuthatch
Mimidae Mockingbirds and thrashers
Floreana mockingbird White-breasted thrasher
Sturnidae Starlings
Black-winged myna Mountain starling
Turdidae Thrushes
Chestnut-capped thrush Taita thrush
Muscicapidae Old World flycatchers
Chloropseidae Leafbirds
Javan leafbird Sumatran leafbird Greater green leafbird
Nectariniidae Sunbirds
Amani sunbird Loveridge's sunbird
Ploceidae Weavers
Estrildidae Estrildid finches
Shelley's crimsonwing Java sparrow
Motacillidae Wagtails and pipits
Sokoke pipit Sharpe's longclaw
Fringillidae Finches and euphonias
Emberizidae Buntings
Jankowski's bunting
Passerellidae New World sparrows
Icteridae Oropendolas, blackbirds, and New World orioles
Parulidae New World warblers
Thraupidae Tanagers and allies
See also Lists of IUCN Red List endangered species List of least concern birds List of near threatened birds List of vulnerable birds List of critically endangered birds List of extinct bird species since 1500 List of data deficient birds
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