Bonaparte’s Gull juvenile 8/20/12

Bonaparte’s Gulls breed in the coniferous forests of western Canada but shortly after fledging the youngsters move east and begin appearing along the New England coast in late summer and through the winter. Juvenile plumage is somewhat similar but dirtier looking than the winter plumage of adults. Summer adults are black-headed and at this time of year some may already be beginning to molt into winter plumage. They are the smallest of the North American gulls and belong to the loose group called hooded, or black-headed gulls. Bonies forage on small fish, insects and crustaceans at the surface and unlike most other gulls, don’t usually scavenge. Fetched at Seapoint.

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