"Built for Survival, Birds Are in Trouble From Pole To Pole"

"The ice of Antarctica doesn’t faze birds. Nor does the heat of the tropics. They thrive in the desert, in swamps, on the open ocean, on sheer rock faces, on treeless tundra, atop airless mountaintops and burrowed into barren soil.

Some fly nonstop for days on end. With just the feathers on their backs, they crisscross the hemisphere, dodging hurricanes and predators along the way, pinpointing scarce food, tracking down safe resting places, arriving unerringly at a precise spot, year after year.

Sole descendents of the dinosaurs, birds have penetrated nearly every ecosystem on Earth and then tailored their own size, habits and colors to each one, pollinating, dispersing seeds, controlling bugs, cleaning up carrion and fertilizing plants, all the while singing notes so beguiling that hearing them makes even the urban dweller pause to listen."

Alanna Mitchell reports for Environmental Health News in part 1 of the Winged Warning series published in conjunction with National Geographic August 25, 2014.

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Monday, August 25, 2014