What are the characteristics of the shape of a swan?

The shape characteristics of swans belong to large birds, with a maximum overall length of 1.5m and a weight of about 12kg. Swan, also known as white swan and mandarin fish, is a large-scale swimming bird, with a body length of about 1.5m and a weight of over 10kg. The whole body has white feathers, the mouth is mostly black, and the upper mouth is yellow to the nostrils. Their heads and necks are very long, accounting for about half of their body length. When swimming, their necks are often straight and their wings are connected. Because of their graceful posture, swans have always been the embodiment of innocence and kindness.

Swan species are the largest waterfowl, belonging to Amphibia, Cyanidae and Anatidae. Most swans belong to the genus Swan. Swan has a beautiful figure, a long neck, a strong body and big feet. They look serious when they slide in the water. When they fly, their necks stretch forward and their wings move slowly. Form a diagonal or V-shaped queue at high altitude when moving. Swan moves faster than other waterfowl in water or air. Swans dive into shallow water with their heads and feed on aquatic plants. When swimming or standing, verrucous swans and black swans often put one foot behind their backs. Swan is similar to both sexes. Different sounds can be made from the trachea. Some kinds of trachea are like cranes in the sternum. Even the wart-nosed swan, which is called dumb swan because it rarely calls, often makes a gentle or sharp sound.