They are a medium sized, grey backed slender gull with black legs and a small yellow bill. In flight you see no white to the black tips of their wings unlike other gulls. They feed mainly on small fish and are well adapted for breeding on narrow cliff ledges of the West coast of Lundy in the summer but spend the winter wandering far out to sea in the Atlantic. They have longer claws than other gulls and they build cup-shaped nests out of seaweed and mud, which help to keep their eggs secure. Both parents incubate the eggs and feed the young but after breeding will disperse away from the island, travelling as far South as tropics of West Africa, until they return to Lundy to breed and meet up again at the same nest site after spending 8 months apart.
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