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Hummingbird Migration Can Mean Flying 2,000 Miles Without a Break
HowStuffWorks via Yahoo News Singapore· 13 hours agoRuby-throated hummingbirds migrate annually from the U.S. all the way to Central America. How often...
This Tiny Swift Bird Can Fly for 10 Months Without Landing
HowStuffWorks via Yahoo News Singapore· 2 days agoThanks to new technology, researchers have discovered that the common swift flies 10 months a year...