Generally, the male duck has a large head, narrow nostrils, a linear body along the beak, a round body, and a pointed tail, while the female duck has a small head, larger nostrils, a slightly rounded body, a flat body, and a spreading tail.
Generally, the male duck has a large head, narrow nostrils, a linear body along the beak, a round body, and a pointed tail, while the female duck has a small head, larger nostrils, a slightly rounded body, a flat body, and a spreading tail.