Caspian Tern

The Caspian tern is the world's largest tern, built with broad wings, a shallowly forked tail and a massive red-orange bill marked with a dark tip. Adults are pale grey above and white below, with a black cap in breeding plumage; the forehead becomes streaked and paler outside the breeding season. Its size, heavy bill and slower, more powerful wingbeats readily separate it from the smaller, slimmer terns sharing inland waters. (Wikipedia, Caspian tern account)

Caspian terns occur on coasts and around large inland lakes and rivers across a broad, discontinuous world range. They feed mainly on fish, flying over open water before plunging to capture prey near the surface. Breeding may be solitary or colonial, with nests placed on open beaches, islands or sparsely vegetated ground. Many populations migrate after nesting. Birds can range well away from a colony while feeding, so individuals seen inland need not indicate a nearby nesting site. (Wikipedia, Caspian tern account)