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The Lesser Tern (Sternula albifrons, syn.: Sterna albifrons) is a species of bird in the subfamily of terns (Sterninae) within the family of gull relatives (Laridae). It is one of the smallest terns and is mostly gray-white in color, with a black pattern on the head and a yellow beak during the breeding season, otherwise darker. The species' breeding area includes parts of Europe, North and West Africa, Asia, Australia and Oceania, where it lives exclusively in waters of various types.