In winter, this bird is pure white except for a black beak and eyes.

Males are a white color, with a black beak, and yellow feet.

The black beak was heavy and hooked with grooves on its surface.

Very young birds have a black beak with a pink base.

It is dark blue in color, with a gray-blue head, bright yellow eyes and a black beak.

The female is similar, but has an all black beak and less green on the face than the male.

Young birds also have quite a small black beak during their first winter.

It has a large black beak and long grey legs.

Unlike an albino, he has golden eyes and a black beak.

Its cruel black eyes looked at him from above a hard black beak.