American Herring Gull

The American Herring Gull (Larus smithsonianus) is a large gull that breeds in North America.
Adults are white with gray back and wings, black wingtips with white spots, and pink legs. Immature birds are gray-brown and are darker and more than European herring gulls, with a darker tail.
It occurs in a variety of habitats including coasts lakes rivers and garbage dumps. Its diet includes Fish and many other items. It nests near water laying three eggs on the ground.
Description
It is a large gull with a long powerful beak full chest and sloping forehead. 
adults have a white head, rump, tail, and underparts and a pale gray back and upperwings. The wingtips are black with white spots known as "mirrors" and the trailing edge of the wing is white. The underwing is grayish with dark tips to the outer primary feathers. The legs and feet are normally pink but can have a bluish tinge, or occasionally be yellow. The beak is yellow with a red spot on the lower mandible. The eye is bright, pale to medium yellow, with a bare yellow or orange ring around it. In winter, the head and neck are streaked with brown.
Voice
It has no song but has a variety of calls The "long call" is a series of notes during which the head is dipped then raised. The "choking call" is produced. Juvenile birds emit high-pitched calls to elicit feeding behavior from a parent and may also emit a clicking call when a parent suddenly flies off.
habitat
The breeding range extends across North America from Alaska to the Great Lakes and north-east coast of the United States from Maine south to North Carolina. It breeds over Canada apart from the southwest and Arctic regions.
It nests near water on coasts islands and cliffs, it also nests on rooftops in cities. It feeds at sea and on beaches lakes rivers fields and dumps. It roosts in open areas close to feeding sites.
Feeding
It has a diet including Fish Mussels Crabs Sea Urchins and Squid. and other birds including their chicks and eggs. It feeds on carrion. Food is plucked from the surface of the shore or sea or is caught by dipping underwater or by shallow plunge-diving. They also feed on Clams and Mussels by dropping them from a height on hard surfaces such as roads or rocks to break their shells.