A medium to large gull with a white head and underbody. Its back is grey and wingtips are black with white spots. Bill is yellow with a distinct red mark on it. Juvenile birds are mottled brown.
A medium-sized gull with a white head and belly and a light grey back. Wingtips are black with white spots. Feet are yellow and bill is yellow with a black ring near the tip. Non-breeding adults have faint brown streaks on the head. Juveniles are a dappled brown.
Starling-sized bird with a black bill and legs, white underbody, and a distinct white stripe on its wing seen in flight. Summer breeding adults have a brown and white pattern on their head, breast and back. Winter non-breeding adults’ pattern is replaced by a pale grey coloration.