List of data deficient birds

As of December 2019, the International Union for Conservation of Nature (IUCN) lists 53 data deficient avian species.[1] 0.48% of all evaluated avian species are listed as data deficient. No subpopulations of birds have been evaluated by the IUCN.

225 critically endangered avian species (2.1%)461 endangered avian species (4.2%)800 vulnerable avian species (7.3%)1,017 near threatened avian species (9.3%)8,427 least concern avian species (77.1%)53 data deficient avian species (0.5%)
Avian species (IUCN, 2019-3)
  • 10,983 extant species have been evaluated
  • 10,930 of those are fully assessed[lower-alpha 1]
  • 9,444 are not threatened at present[lower-alpha 2]
  • 1,486 to 1,539 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)]
  1. excludes data deficient evaluations.
  2. NT and LC.
  3. Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
  4. Chart omits extinct (EX) species

This is a complete list of data deficient 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.

Procellariiformes

Includes petrels and albatrosses.

  • Elliot's storm petrel
  • Pincoya storm petrel

Gruiformes

("Crane-like")

  • Brown-banded rail
  • Colombian crake

Owls
  • Maned owl
  • Omani owl
  • Seram masked owl

Passerines
  • Large-billed reed warbler
  • Papuan whipbird
  • Black-headed rufous warbler
  • Sillem's mountain finch
  • Black-tailed cisticola
  • Tana River cisticola
  • Tagula butcherbird
  • Black-lored waxbill
  • Eastern wattled cuckooshrike
  • Grimwood's longclaw
  • Black-browed babbler
  • Obscure berrypecker
  • Tagula honeyeater
  • Visayan miniature babbler
  • Friedmann's lark
  • Tessmann's flycatcher
  • White-chinned myzomela
  • Sombre rock chat
  • Red Sea cliff swallow
  • Snow Mountains robin
  • Lufira masked weaver
  • African river martin
  • Blue-wattled bulbul
  • Obbia lark
  • Philippa's crombec
  • Maranon Antshrike
  • White-tailed tityra
  • Tagula white-eye

Caprimulgiformes
  • Vogelkop owlet-nightjar
  • Starry owlet-nightjar
  • Mayr's swiftlet
  • Three-toed swiftlet
  • Whitehead's swiftlet
  • Fernando Po swift
  • Vaurie's nightjar
  • Spot-fronted swift
  • White-fronted swift
  • Letitia's thorntail
  • Bogotá sunangel
  • Cayenne nightjar

Other bird species
  • White-faced plover
  • Somali pigeon
  • Chestnut-shouldered goshawk
  • White-chested tinkerbird
  • Little paradise kingfisher
  • Worcester's buttonquail
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See also

References
  1. "IUCN Red List version 2016-2". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.
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