List of data deficient birds

•   Extinct in the wild (EW): 5 species
•   Critically endangered (CR): 218 species
•   Endangered (EN): 416 species
•   Vulnerable (VU): 741 species
•   Near threatened (NT): 971 species
•   Least concern (LC): 7,872 species
•   Data deficient (DD): 61 species

Avian species (IUCN, 2016-2)

• 10,284 extant species have been evaluated
• 10,223 of those are fully assessed^{[lower-alpha 1]}
• 8843 are not threatened at present^{[lower-alpha 2]}
• 1375 to 1436 are threatened^{[lower-alpha 3]}
• 145 to 163 are extinct or extinct in the wild:
  • 140 extinct (EX) species^{[lower-alpha 4]}
  • 5 extinct in the wild (EW)
  • 17 possibly extinct [CR(PE)]
  • 1 possibly extinct in the wild [CR(PEW)]

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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

As of September 2016, the International Union for Conservation of Nature (IUCN) lists 61 data deficient avian species.^[1] 0.59% of all evaluated avian species are listed as data deficient. No subpopulations of birds have been evaluated by the IUCN.

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.

Gruiformes

("Crane-like")

Owls

Passerines

Caprimulgiformes

Other bird species

See also

• Lists of IUCN Red List data deficient species
• List of least concern birds
• List of near threatened birds
• List of vulnerable birds
• List of endangered birds
• List of critically endangered birds
• List of recently extinct birds

References