
09/05/2023
Bar-headed geese( Anser indicus) adapted to fly at altitudes of up to 25,000 feet, where the air is thin and cold. They can also fly non-stop for as long as seven hours across the Himalayas.
They use a variety of strategies to cope with the extreme environment, such as flying in V-shaped formations, adjusting their flight speed and altitude, and using tailwinds and thermals to save energy.
Bar-headed geese have a distinctive black-and-white head and neck pattern that helps them recognize each other and communicate visually and vocally while flying in flocks. They also have an orangey-yellow bill and legs that contrast with their pale grey body.
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