ScienceDaily Posted September 9, 2014 Share Posted September 9, 2014 One hundred years after the extinction of the passenger pigeon, the nation’s top bird science and conservation groups have come together to publish The State of the Birds 2014 -— the most comprehensive review of long-term trend data for U.S. birds ever conducted. Read the full article on ScienceDaily Link to comment Share on other sites More sharing options...
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