When the book 'Silent Spring' came out, it highlighted the role of birds as 'canaries in the coal mine.' It is ominous when so many species are threatened. A new report from the Interior Secretary,
'The State of the Birds'. The report reveals troubling declines of bird populations during the past 40 years—a warning signal of the failing health of our ecosystems.
Nearly a third of the nation's 800 bird species are endangered, threatened or in "significant decline" because of habitat loss, invasive species and other threats, according to a report released Thursday by the Obama administration that could ultimately lay a foundation for more regulation of development in certain areas.
The report cites among the threats to bird species energy development, suburban sprawl and agricultural practices.
Among the more than 800 bird species in the U.S., 67 are listed as endangered or threatened by the federal government, the report says. In addition, more than 184 species are designated as species of "conservation concern," the report says.
The report says the birds of Hawaii -- home to more than a third of all the bird species listed as endangered or threatened in the U.S. -- are in greatest peril. Since humans colonized the islands in 300 A.D., according to the report, 71 Hawaiian bird species have gone extinct, and 10 haven't been seen in as long as 40 years.
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