The alpine swift glides and flaps throughout its entire migration across the Sahara Desert and sub-Saharan West Africa.
via Discovery News http://news.discovery.com/animals/migrating-birds-fly-nonstop-for-six-months-131009.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/animals/migrating-birds-fly-nonstop-for-six-months-131009.htm#mkcpgn=rssnws1
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