Biology:List of data deficient birds

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As of December 2020, the International Union for Conservation of Nature (IUCN) lists 46 data deficient avian species. 0.47% 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")

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