Parasitic Jaeger

The parasitic jaeger, or Arctic skua, is a migratory seabird of the skua family. It breeds in northern Fennoscandia, Scotland, Iceland, Greenland, northern Canada, Alaska and Siberia and winters across the southern hemisphere. It is easily confused with the long-tailed and pomarine jaegers, and occurs in three colour morphs. The word jaeger is German for hunter (Wikipedia, general species account). The parasitic jaeger or arctic skua (Stercorarius parasiticus), also known as the parasitic skua or arctic jaeger, is a seabird in the skua family Stercorariidae. (Wikipedia, general species account).

Kleptoparasitism, chasing other birds to make them drop food, is a major source of food during migration and winter, and gives the bird its name (Wikipedia, general species account). Kleptoparasitism is a major source of food for this species during migration and winter, and is where the name is derived from. the food disgorged by other birds when pursued by skuas was once thought to be excrement. The English "skua" comes from the Faroese name skúgvur for the great skua, with the island of Skúvoy known for its colony of that bird. (Wikipedia, general species account).