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As of December 2019, the International Union for Conservation of Nature (IUCN) listed 224 critically endangered avian species, including 19 which are tagged as possibly extinct or possibly extinct in the wild.[1][2] 2% of all evaluated avian species are listed as critically endangered. No subpopulations of birds have been evaluated by the IUCN.
- Extinct in the wild (EW): 5 species
- Critically endangered (CR): 223 species
- Endangered (EN): 460 species
- Vulnerable (VU): 798 species
- Near threatened (NT): 1,001 species
- Least concern (LC): 8,460 species
- Data deficient (DD): 46 species
Avian species (IUCN, 2020-3)
- 10,999 extant species have been evaluated
- 10,947 of those are fully assessed[lower-alpha 1]
- 9,461 are not threatened at present[lower-alpha 2]
- 1,481 to 1,533 are threatened[lower-alpha 3]
- 164 to 183 are extinct or extinct in the wild:
- 159 extinct (EX) species[lower-alpha 4]
- 5 extinct in the wild (EW)
- 19 possibly extinct [CR(PE)]
- excludes data deficient evaluations.
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.[3] 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".[4]
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.
Includes petrels and albatrosses.
- Tristan albatross
- New Zealand storm petrel
- Guadalupe storm petrel (possibly extinct)
- MacGillivray's prion
- Waved albatross
- Mascarene petrel
- Beck's petrel
- Fiji petrel
- Jamaican petrel (possibly extinct)
- Magenta petrel
- Galápagos petrel
- Townsend's shearwater
- Bryan's shearwater
- Rapa shearwater
- Newell's shearwater
- Balearic shearwater
("Crane-like")
- Zapata rail
- New Caledonian rail (possibly extinct)
- Guam rail
- Siberian crane
- Samoan woodhen (possibly extinct)
- Makira woodhen or Moorhen (possibly extinct)
- White-winged flufftail
There are 22 parrot species assessed as critically endangered.
New Zealand parrots
Cockatoos
Psittacids
- Imperial amazon
- Lilicine amazon
- Puerto Rican amazon
- Yellow-naped amazon
- Glaucous macaw (possibly extinct)
- Great green macaw
- Blue-throated macaw
- Red-fronted macaw
- Red-throated lorikeet
- New Caledonian lorikeet (possibly extinct)
- Blue-fronted lorikeet
- Malherbe's parakeet
- Coxen's fig parrot
- Swift parrot
- Orange-bellied parrot
- Blue-winged racket-tail
- Sinú parakeet (possibly extinct)
- Ultramarine lorikeet
Old World parrots
("Pelican-like")
Includes hornbills, hoopoe and wood hoopoes.
Includes most of the diurnal birds of prey.
("Goose-like")
- Laysan duck
- Baer's pochard
- Madagascan pochard
- Brazilian merganser
- Pink-headed duck (possibly extinct)
- Crested shelduck (possibly extinct)
Includes kingfishers and bee-eaters.
Antbirds
Ovenbirds
Monarchs
Corvids
Reed-warblers
- Millerbird
- Saipan reed warbler
- Moorea reed warbler (possibly extinct)
- Rimatara reed warbler
White-eyes
Laughingthrushes and allies
Thrushes
Starlings
- Black-winged starling
- Pohnpei starling (possibly extinct)
- Nias hill myna
- Bali myna
True finches
- São Tomé grosbeak
- Maui nukupuʻu (possibly extinct)
- Kauaʻi nukupuʻu (possibly extinct)
- Palila
- ‘Akeke‘e
- Maui ʻakepa (possibly extinct)
- ʻAkikiki
- ʻAkohekohe
- Oʻahu ʻalauahio (possibly extinct)
- Maui parrotbill
- ʻŌʻū (possibly extinct)
- Nihoa finch
True tanagers
Other passeriformes
- Raso lark
- Carrizal seedeater
- Araripe manakin
- Regent honeyeater
- Taita apalis
- Long-billed forest warbler
- Antioquia brush finch
- South Island kokako (possibly extinct)
- Kinglet calyptura
- Sangihe shrikethrush
- Banded cotinga
- Javan blue flycatcher
- Rück's blue flycatcher
- Cebu flowerpecker
- Yellow-breasted bunting
- Táchira antpitta
- Urrao antpitta
- Crow honeyeater
- Archer's lark
- Bahama oriole
- Réunion cuckooshrike
- São Tomé fiscal
- Semper's warbler
- Chestnut-capped piha
- Stresemann's bristlefront
- Socorro mockingbird
- Isabela oriole
- Alagoas tyrannulet
- Iquitos gnatcatcher
- White-eyed river martin
- Straw-headed bulbul
- Niceforo's wren
- Cozumel thrasher
- Santa Marta wren
- Bachman's warbler (possibly extinct)
- New Caledonian owlet-nightjar (possibly extinct)
- New Caledonian nightjar (possibly extinct)
- Jamaican poorwill (possibly extinct)
("Woodpecker-like")
- Imperial woodpecker (possibly extinct)
- Ivory-billed woodpecker (possibly extinct)
- Okinawa woodpecker
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