Adults are similar in appearance to the Herring Gull, but have a smaller yellow bill with a black ring, yellow legs, brown eyes and a more rounded head. The body is mainly white with grey back and upper wings.They mainly eat insects, fish and eggs. They also scavenge at garbage dumps or docks. They may follow plows in fields for insects stirred up by this activity.
Fun Fact This is the state bird of Utah, remembered for assisting Mormon settlers in dealing with a plague of Mormon crickets. A monument in Salt Lake City commemorates this event, known as the "Miracle of the Gulls".