a large brownish predatory seabird related to the gulls, pursuing other birds to make them disgorge fish they have caught 贼鸥
Family Stercorariidae: genera Catharacta (four larger species) and Stercorarius (three smaller species, North American name: jaeger) 贼鸥科:大贼鸥属(4大型种)和贼鸥属(3小型种,北美名:jaeger)
语源
late 17th cent.: modern Latin, from Faroese skúvur, from Old Norse skufr (apparently imitative)