Tell me about the ducks you usually see through wild ducks and describe them in a paragraph.

Then I often see Beijing ducks here. Beijing duck is big, fat, tall and beautiful. The head is bigger. The beak is of medium size. Eyes are big and bright. The neck is thick and of medium length. The body is long and square, the front part is raised at an angle of about 30 with the ground, the back is wide and flat, the chest is plump, the sternum is long and straight, and little wings is attached to the body. The tail is short and upturned, and the drake has four curly plumage. Laying hens have developed fallopian tubes and full bellies, which make their hindquarters larger than their forequarters, short and thick legs and wide flippers. The whole body is covered with feathers, pure white, with a creamy luster; Beak, shin, webbed orange or orange; Rainbow blue and gray. The down of the newborn duckling is golden yellow, which is called "duck yellow". With the growth of age, the color gradually becomes lighter and turns white around the Golden Week. At the age of 60, the feathers are long, and the beak, hair and webbed are orange.