Ring-billed Gull (Larus delawarensis)

Whilst the summwer plumage is very similar to that seen in winter, like many gulls there are major differences throughout the first three years. Starting brown and speckled, at each annual change it becomes whiter in body and greyer on the wings. The black ring on the bill develops from the second year. It is a common bird of coastal areas, across all of North America.