Surveys by government agencies, conservation organizations and citizen volunteers show that nearly a third of the nation’s 800 bird species are endangered, threatened or in serious decline, Interior Secretary Ken Salazar said Thursday.
Mr. Salazar spoke as he issued “The U.S. State of the Birds,” a report he called the first-ever comprehensive bird survey in the nation. The survey found that over the last four decades, grassland birds had declined by 40 percent and birds in arid lands by 30 percent.
It also said that 39 percent of bird species dependent on American coastal waters had declined, with birds in Hawaii particularly threatened.
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