Uncommon and often rather local in Mediterranean region; very rare vagrant to U.K. and northern Europe. Away from main range, found singly or in pairs, at times in association with much commoner Black-headed Gull. Breeding adult often has strong rosy-pink flush to underparts, which can draw attention. Otherwise looks rather like Black-headed Gull, but longer bill and sloping forehead impart a "snouty" profile. Breeding adult has clean white head; nonbreeding plumages have faint dusky earspot.