The common name of the Bonaparte's Gull honours Charles Lucien Bonaparte, a cousin of Napoleon Bonaparte who made important contributions to American ornithology while an active member of the Academy of Natural Sciences of Philadelphia during the 1820s.

This gull is found mainly in northern North America. At 28 to 38 cm in length, it is one of the smallest species of gull. Its plumage is mainly white with grey upperparts and a gray spot on the cheek. During breeding season, Bonaparte's gull gains a slaty-black hood. The sexes are similar in appearance. ~ All About Birds

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