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Geese can conquer Mount Everest

January 16, 2015 at 12:20 GMT Last Updated

A follow-up study revealed the secrets of flight Bar-headed Goose Himalaya - Migration of the highest in the world, birds.

The geese were recorded at more than 7,000 m (23,000 ft) and mountaineers said they saw birds flying over Mount Everest.

Their ability to fly in these extreme conditions has fascinated scientists for decades, such as the BBC science journalist Victoria Gill reported.