Fairly common but often rather local summer migrant from winter grounds in Africa and southern Iberia. Mainly coastal, but also occurs inland locally. Breeds colonially on sandy and stony substrates, at times with other terns, from beaches to riverbanks and lakeshores. Often overlooked unless noisy and mobbing you at a colony. Flies with hurried deep wingbeats; splash dives in water to catch small fish. Identified by tiny size (much smaller than other European terns except very different Black Tern). Breeding plumage has black cap with white forehead chevron, black-tipped yellow bill.