Skua

Skua, any of various sea birds (genus Stercorarius) known for stealing food from other sea birds, such as gulls, terns, petrels, and penguins. The skua lives in arctic and antarctic regions. Similar in looks to a sea gull, it is normally reddish to brown, with white patches on the wings. Skuas are strong fliers who harass weaker birds, causing them to drop their prey.