Swan is the largest individual group in the family Anatidae. The neck is slender, exceeding or equal to the body length; The floor of the mouth is high and the front end is flat, and the eye glands are exposed; The tail is short and round with 20-24 tail feathers; Strong webbed, with membrane on the back toe. Gay, or slightly lighter women (such as black swan). Young birds are mostly brown. Like to live in groups in lakes and swamps, mainly feeding on aquatic plants, but also eating snails and mollusks.

Most swans are monogamous and stay together for life. There are many courtship behaviors, and men and women tend to make the same movements at the same time, and they will gently comb their feathers.

Extended data:

Because of the white feather color, elegant posture, touching voice and loyal behavior, the white swan is regarded as a symbol of purity, loyalty and nobility in the eastern and western cultures of Eurasia.

In ancient China, swans were called devils, Hongze, cranes, Honghu Lake, white cranes, orioles and yellow cranes. Many place names still contain these words, such as Yanmenguan, Guling, Hu Ze and Yellow Crane Tower. Today, some places are still important channels for geese and other geese to migrate. There is a record in The Book of Songs that Bai Niao is white and fat.

Baidu encyclopedia-swan