Mainly inhabit lakes, ponds, rivers, swamps and nearby areas on open plains and plain grasslands. It feeds on the leaves and buds of various herbaceous plants, including terrestrial and aquatic plants, reeds, algae and other plant foods, and also eats a small amount of animal foods such as crustaceans and mollusks. Sexual pleasures gather in groups, and they often move in groups, especially during the migration season, where they often gather in large groups of tens, hundreds, or even thousands.
Distributed in China, southern Siberia, Central Asia, from the Ob and Tobol rivers to the east, to the coast of Okhotsk, Kamchatka Peninsula and Sakhalin Island; overwintering in the Korean Peninsula and Japan.
