Bar-headed Goose

The bar-headed goose is a pale grey goose with a white head crossed by two bold black bars across the rear crown and nape. A black line also borders the back of the neck, while the bill and legs are yellow-orange. Adults of both sexes are similar, though males average larger; juveniles lack the crisp double head bars. The compact head pattern, pale body and strongly contrasting dark flight feathers make it distinctive on the ground and in flight. (Wikipedia, bar-headed goose account)

Bar-headed geese breed around high-altitude lakes and marshes in Central Asia, grazing on grasses and roots and also taking grain and aquatic vegetation. They nest on the ground near water and sometimes reuse elevated nests built by other birds; the female incubates while the male guards nearby. After breeding, many migrate across the Himalayas to winter in South Asia. Their migration includes sustained flight in thin air and has prompted extensive study of respiratory and circulatory adaptations. (Wikipedia, bar-headed goose account)