Do you know why blue-footed boobies have blue feet? Author Laura Erickson does, and you’ll find the answers to this and many ...

Flightless species of birds (such as ostriches, which are the largest living birds) tend to outsize any of the largest birds ...

It is recognizable by its dark-brown face, long, white neck, and of course, a white backside that can only be seen when the bird is in flight. Its wings, which are white on top and brown on the ...

This bird made hawk-watching famous ... Dark morph: adult has an all-dark body with dark wing coverts and silvery flight feathers, the dark tail has a wide white band. The juvenile is dark ...