Tree ducks have long necks that resemble geese, and males and females resemble geese, with long legs, making them one of the few representatives of the order Goose that inhabit trees. The tree duck has a sharp call, and its English name means howling duck, which is the name.
Chinese mainland southeast to western Yunnan, Hainan Island and other places, are all resident birds in various places. Distribution: It occasionally appears in Taiwan and is a rare bird.
It usually inhabits ponds, lakes and reservoirs, and prefers to hide in high grass or under lotus leaves, and it is also seen in groups on the surface of the water. Sexual alertness. A few of the group often lead their necks to look around from time to time, and when they encounter people or enemies approaching, they take off first, and other tree ducks fly one after another. The flight force is weak, the speed is not very fast, and the whistling sound is often made while flying. Flocks of aquatic plants hide in the midday heat of summer. Very good diving ability. When injured and unable to fly, dive into the water, a dive can take ten minutes. When the sun is about to set, they fly in pairs or seven, eight, or twenty or so flocks to nearby farmland to feed, and return to the waters where they inhabit during the day before dawn. Not disturbed, generally do not move habitat.
Tree ducks feed mainly on rice in the Chuanshan area of Guangxi, and when they migrate, they coincide with the seedling raising period, and the grain seeds sown in the rice seedling fields are the main food. Rice ripens often integrate into large groups, causing a certain loss of rice yield. National protection level: Level II