Little bird's arduous migration reaches 'brink of impossibility'

April 1, 2015 11:04 AM

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Little bird's arduous migration reaches 'brink of impossibility'

Scientists on Tuesday documented how this songbird that weighs half an ounce (12 grams) completes an arduous nonstop flight over the Atlantic Ocean from forests in New England and eastern Canada to Caribbean islands as it migrates each fall toward its South American wintering grounds.

By placing miniature backpacks with geolocators on the birds, the researchers determined they flew an average of nearly 1,600 miles (2,540 km) over two to three days.

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