Restricted to open water in large lakes, reservoirs, rivers and coastal areas, it dives head and feet first into the water to capture large fish. It will, however, take small mammals, birds, and marine invertebrates at times. Often pursued by Bald Eagles that rob the Osprey of its fish prey. Its nest is a huge bulky platform at the top of a live or dead tree near the water. Readily uses artificial platforms placed at the tops of poles to construct its nest. The Osprey has one of the broadest distributions of any bird species as it occurs on every continent except Antarctica.