Ring Billed Gull - Juvenile クロワカモメ・幼鳥

According to birdweb, "The juvenile is mottled brown mixed with adult plumage characteristics. It has pink legs and a pink bill with a dark tip. As the bird matures, the legs turn yellow, and the bill becomes yellow with a black ring."

Ring Billed Gull

Larus delawarensis ORDER: CHARADRIIFORMES FAMILY: LARIDAE

A familiar parking lot gull, the Ring-billed Gull breeds primarily inland in North America. It can be found along the coasts, but many of these "seagulls" never see anything except fresh water all their lives(allaboutbirds).