Sometimes people mistake the American white ibis for a different species among birds with white heads, such as a cattle egret. The ibis is recognizable by its bright orange beak and legs ...

American white pelican has a large, heavy beak that's yellow-orange in color. Besides catching fish, pelicans use their bills to get rid of excess salt ...

The bridled white-eye's plumage is otherwise yellow, and each bird has a yellowish-orange bill, legs, and feet. Rota bridled white-eyes are considered gregarious and are often observed in small groups ...

The two-colour discs had different pairs of colours selected from an orange-to-red spectrum. This mirrors the colour range found in the male songbird beak. One idea was that the birds would be ...