The geese that can conquer Mount Everest
A tracking study has revealed the secrets of the Himalayan flight of the bar-headed goose - the world's highest bird migration. The geese have been recorded at heights of more than 7,000m (23,000 ft) and mountaineers have claimed they have seen the birds fly over Mount Everest. Their ability to fly in such extreme conditions has fascinated scientists for decades, as the BBC's science reporter Victoria Gill reports. For more information about the Summit Murder Mystery series, CLICK HERE To order your copy of Murder on Everest, CLICK HERE To order your copy of Murder on Kilimanjaro , CLICK HERE Follow Charles Irion on Twitter HERE Friend Charles Irion on Facebook HERE Visit Charles Irion's YouTube channel HERE