The Ring-Billed Gull (Larus delawarensis) is a monotypic species (no subspecies) classified in the order Charadriiformes and the family Laridae. This species gets its name from the black ring around its bill. The Ring-Billed Gull can live for up to 27.5 years. Physical Characteristics Adult Ring-Billed Gulls have gray backs, while their chests and bellies … Continue reading Ring-Billed Gull