[birding] NYTimes.com: One Third of U.S. Bird Species Endangered, Survey Finds

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SCIENCE / ENVIRONMENT | March 20, 2009
One Third of U.S. Bird Species Endangered, Survey Finds
By CORNELIA DEAN
The survey found that over the last four decades, grassland birds had declined by 40 percent and birds in arid lands by 30 percent.

http://www.nytimes.com/2009/03/20/science/earth/20bird.html?emc=eta1




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