Bird Populations

One In Eight Bird Species Threatened With Extinction

A new study claims that one in eight species of bird is threatened with extinction across the world. The 2018 State of the World’s Birds report, published by BirdLife International, was five years in the making and paints a bleak picture for many well-known species including the Snowy Owl, Atlantic Puffin and European Turtle-dove.

Overall, 40 percent of the world's nearly 11,000 bird species are in decline. 222 species (2 percent) are critically endangered while 461 (4 percent) are classified as endangered. A further 786 are vulnerable (7 percent) while 1,017 (9 percent) are near threatened. The grim statistics aren't just bad news for bird populations. They are bad news for the planet as a whole due to the fact that the health of bird species is a key measure for the state of ecosystems in general.

Description

This chart shows the global conservation status of total extant bird species in 2018.

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Distribution of bird species* based on level of concern in North America in 2016
Distribution of living species threatened with extinction worldwide according to IUCN Red List as of 2025, by taxonomic group
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Leading countries with the most threatened species worldwide as of 2025
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Distribution of tree species worldwide as of 2021, by conservation status
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Countries with the highest number of threatened bird species on the IUCN Red List in Latin America and the Caribbean in 2024
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Share of bird species needing urgent conservation action in North America in 2016, by habitat*

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