The Bar headed goose (Anser indicus) is famous as it is widely believed to make the highest altitude migration of any bird. While there was an anecdotal report of a flock of bar-headed geese being heard flying over Mt Makalu (the fifth highest mountain on earth), an unconfirmed report of them being seen flying over Everest has become legend. It has also been long believed that bar-headed geese use jet stream tail winds to facilitate their flight across the Himalaya. Research has shown that despite the prevalence of predictable tail winds that blow up the Himalayas (in the same direction of travel as the geese), bar-headed geese spurn the winds, waiting for them to die down overnight, when they then undertake the greatest rates of climbing flight ever recorded for a bird, and sustain these climbs rates for hours on end.It gets its common named from the two brownish-black bars that wrap around the back of its head. It breeds in Central Asia in colonies of thousands near mountain lakes and winters in South Asia. It is monotypic (males and females look the same) and mates for life.
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