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Bye Bye Birdies
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| Contributor | ArmyDem |
| Last Edited | ArmyDem May 14, 2006 12:23pm |
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| Category | News |
| Media | Weekly News Magazine - TIME Magazine |
| News Date | Sunday, May 7, 2006 06:00:00 PM UTC0:0 |
| Description | Populations of many migratory species have plummeted--and, in some cases, global warming seems to be at fault
By MICHAEL D. LEMONICK
Posted Sunday, May 7, 2006
Even after an unusually mild winter, the return of spring to North America feels like a blessing. Parents are dragging their toddlers to the park. Students are dusting off their Frisbees. And bird watchers, armed with binoculars and guidebooks, are heading out to search for their favorite species.
But the birders may be in for a disappointment. Radar studies of annual migrations suggest that the number of birds winging along America's flyways may be down by nearly 50% over the past 30 years, and data from the U.S. Geological Survey's annual Breeding Bird Survey and the Audubon Society's Christmas Bird Count reflect a similar decline. Various reasons for the falloff have been proposed, but climate change caused by global warming is high on the list for many experts. |
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