Seagulls are typically medium to large birds, usually gray or white, often with black markings on the head or wings. They typically have harsh wailing or squawking calls. They have stout, longish bills, and webbed feet. Most gulls are ground nesting carnivores, which will take live food or scavenge opportunistically. Their live food often includes crabs and small fish.
Sea gulls are intelligent birds existing in great numbers along coastal areas, as well as inland lakes and rivers. Gulls can drink either salt or freshwater and their scavenger diets allow them great adaptability. Sea gulls eat anything from dead fish and garbage to field mice and insects.
Gulls build basic nests on the ground in safe open areas. The nest often consists of grass, seaweed and some sticks. They nest in colonies on sandy or gravely areas near the shore.