The state of the union’s birds

A comprehensive analysis of the current condition of birds in the U.S. was released yesterday by The Nature Conservancy, USGS, the Audubon Society, the Cornell Lab of Ornithology and many other non-profit groups. Dubbed The State of the Birds, the document reports that of the nation’s approximately 800 bird species, 67 are federally listed as endangered, 184 are of conservation concern and many others are declining due to...

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