tc
UpInClass Member
Posts: 2,105
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Post by tc on Sept 29, 2021 19:42:49 GMT -5
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Post by Badactor on Sept 29, 2021 19:52:29 GMT -5
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1hooper
UpInClass Steward
Posts: 6,749
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Post by 1hooper on Sept 29, 2021 21:05:53 GMT -5
Nearly 3 Billion Birds Gone Since 1970 The first-ever comprehensive assessment of net population changes in the U.S. and Canada reveals across-the-board declines that scientists call “staggering.” All told, the North American bird population is down by 2.9 billion breeding adults, with devastating losses among birds in every biome. Forests alone have lost 1 billion birds. Grassland bird populations collectively have declined by 53%, or another 720 million birds. www.birds.cornell.edu/home/bring-birds-back/ |
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