BirdLife's species work
 Dave Dick/RSPB
The Slender-billed Vulture is classified as Critically Endangered
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BirdLife aims to conserve the diversity and distribution of wild bird species worldwide as an integral part of nature, by preventing extinctions, improving the status of Globally Threatened Birds, and keeping common birds common. Through its Global Species Programme, BirdLife collates and analyses information on all the world’s birds in order to set priorities for action, through species-specific initiatives such as Action Plans, through safeguarding of sites for key species, and through campaigns and policy interventions.
Conserving the world’s birds: key facts and figures
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1,221 species are considered threatened with extinction and included on the 2007 IUCN Red List. This represents 12.4% of the total of 9,821 extant bird species in the world
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Of the threatened species, 189 species are considered Critically Endangered and are therefore at extremely high risk of extinction in the wild
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An additional 812 species are considered Near Threatened, giving a total of 2,033 species that are urgent priorities for conservation action
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A total of 135 species are documented as having gone Extinct since 1500. A further four species are now Extinct in the Wild and survive only in captive populations. Fifteen species are categorised as Critically Endangered (Possibly Extinct) because they are likely to have gone extinct too, but cannot be designated as such until we are certain. Thus, a total of 154 species may have been lost in the last 500 years
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Three species have gone extinct already this century: Spix's Macaw Cyanopsitta spixii (classified as Critically Endangered: Possibly Extinct in the Wild) in 2000, Hawaiian Crow Corvus hawaiiensis (classified as Extinct in the Wild) in 2002, and Po‘ouli Melamposops phaeosoma (classified as Critically Endangered: Possibly Extinct) in 2004.
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Things are getting worse: the Red List Index shows that the overall threat status (projected extinction risk) of the world’s birds has deteriorated steadily since 1988
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Declines have been particularly severe for birds in the Indo-Malayan realm (owing to deforestation) and for the world’s albatrosses (owing to incidental mortality in longline fisheries)
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Brazil and Indonesia support the highest numbers of Globally Threatened Birds, with 119 each
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Forest is by far the most important habitat for Globally Threatened Birds, supporting 76% of species. Tropical/subtropical lowland and montane moist forest are the most important forest-types, supporting 40% and 30% of Globally Threatened Birds respectively
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The most important threat to the world’s birds is habitat destruction and degradation, impacting 86% of Globally Threatened Birds
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Over-exploitation (mainly hunting for food and trapping for the cage-bird trade) and the effects of alien invasive species (especially predators) each also threaten nearly a third of Globally Threatened Birds
More detailed analysis on extinctions and on the trends, distribution, habitats, threats and conservation actions underway for the world’s birds can be found in State of the world’s birds.
A simple overview can be found in the booklet Globally Threatened Birds: indicating priority actions (PDF, 2.5 MB).
To view more detailed information on the world's birds including analyses of their distributions, habitats, threats and status, visit the Data Zone
Visit BirdLife's Globally Threatened Bird Forums to view and contribute to on-going discussions on the evaluation of the IUCN Red List status of endangered species.