The Little Tern (Sterna albifrons)is a summer migratory bird which inhabits tropical and temperate regions, including some locations in Korea. Both male and female birds look alike with a white and gray body, a black head, and black lines around the eyes. Its beak is yellow, and the tip of its beak is blackish, but in the winter the entire beak turns black. This bird feeds on small fish and lives on the sand and gravel along beaches and riverbanks. It lays two to three eggs and both male and female birds take turns incubating them.