bn:17389146n
Noun Concept
Categories: Extinct birds, Human impact on the environment, Extinction events
EN
bird extinction  causes of bird extinction  extinction of birds
EN
Out of the approximately 11,154 known bird species, 159 have become extinct, 226 are critically endangered, 461 are endangered, 800 are vulnerable and 1,018 are near threatened. Wikipedia
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EN
Out of the approximately 11,154 known bird species, 159 have become extinct, 226 are critically endangered, 461 are endangered, 800 are vulnerable and 1,018 are near threatened. Wikipedia
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