As of December 2019, the International Union for Conservation of Nature (IUCN) listed 223 critically endangered avian species, including 19 which are tagged as possibly extinct or possibly extinct in the wild. 2% of all evaluated avian species are listed as critically endangered. No subpopulations of birds have been evaluated by the IUCN.
Additionally 55 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 critically endangered avian species evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.
Anseriformes
Galliformes
Podicipediformes
Columbiformes
Otidiformes
Cuculiformes
Gruiformes
Charadriiformes
Aegotheliformes
Caprimulgiformes
Apodiformes
Sphenisciformes
Procellariiformes
Suliformes
Pelecaniformes
Accipitriformes
Strigiformes
Bucerotiformes
Coraciiformes
Piciformes
Psittaciformes
Strigopidae
Kākāpō
Cacatuidae
Red-vented cockatoo Yellow-crested cockatoo Baudin's black cockatoo
Psittacidae
Psittaculidae
Passeriformes
Pittidae
Furnariidae
Thamnophilidae
Grallariidae
Rhinocryptidae
Stresemann's bristlefront
Tyrannidae
Cotingidae
Pipridae
Araripe manakin
Meliphagidae
Callaeidae
South Island kokako (possibly extinct)
Campephagidae
Réunion cuckooshrike
Pachycephalidae
Sangihe whistler
Oriolidae
Isabela oriole
Monarchidae
Laniidae
São Tomé fiscal
Corvidae
Alaudidae
Pycnonotidae
Straw-headed bulbul
Hirundinidae
White-eyed river martin
Acrocephalidae
Cisticolidae
Zosteropidae
Leiothrichidae
Troglodytidae
Mimidae
Sturnidae
Turdidae
Muscicapidae
Dicaeidae
Cebu flowerpecker
Fringillidae
Emberizidae
Yellow-breasted bunting
Passerellidae
Antioquia brush finch
Parulidae
Thraupidae
See also Lists of IUCN Red List critically endangered species List of least concern birds List of near threatened birds List of vulnerable birds List of endangered birds List of extinct bird species since 1500 List of data deficient birds
References