Medium-sized (L 35 cm), very like Common Tern (Sterna hirundo), but has darker red bill and shorter legs. Nesting occurs only on coastal areas: arms of sea, estuaries, beaches. The Arctic Tern breeds colonially , frequently with Common Tern. Feeds largely on small fish. Migrant.
Reasons for the need for protection/inclusion in annex I
The major threats now seem to be the depletion of the stocks of fish due to overfishing and water pollution, disturbances and predation at nesting sites.
yellow = summer visitor
green = resident
blue = winter visitor
about 500,000 pairs
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