PhysOrg Posted September 19, 2019 Share Posted September 19, 2019 A study published today in the journal Science reveals that since 1970, bird populations in the United States and Canada have declined by 29 percent, or almost 3 billion birds, signaling a widespread ecological crisis. The results show tremendous losses across diverse groups of birds and habitats—from iconic songsters such as meadowlarks to long-distance migrants such as swallows and backyard birds including sparrows. View the full article Quote Link to comment Share on other sites More sharing options...
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