The Pintail Duck is a slim-bodied, long-necked bird that has a sharply pointed tail in contrast to the more common rounded one. The male has gray feet, a gray to grayish-blue bill and a white breast. The head is brown or greenish with a trailing edge. There is a bronze-green speculum. Females are mostly brown. They are 20 to 29 inches long and weigh 2 to 3.5 pounds.