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Probably the most common gull species in North America, Ring-billed Gull numbers are
estimated up to 4 million individuals rangewide. They are medium in size. Adults are pale
gray along their backs with white heads, yellow legs, pale yellow eyes with a red eye ring
and a broad black ring around their yellow bills. They nest on the ground, usually on
sparsely vegetated islands in the northern Great Plains. Ring-billed Gulls winter along
the coast as well as inland in the southern Great Plains. They forage on lakes and
reservoirs, landfill sites and farm fields. Their diet consists of fish, insects,
earthworms, rodents, grain, fruit and discarded human food.
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