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Outdoor Cats: Single Greatest Source of Human-Caused Mortality for Birds and Mammals

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Cat-with-AmCoot_Debi-ShearwaterTN.jpgA new peer-reviewed study published today and authored by scientists from two of the world's leading science and wildlife organizations - the Smithsonian Conservation Biology Institute and the U.S. Fish and Wildlife Service - has found that bird and mammal mortality caused by outdoor cats is much higher than has been widely reported, with annual bird mortality now estimated to be 1.4 to 3.7 billion and mammal mortality likely 6.9 - 20.7 billion individuals.


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