Ring-billed GullL. delawarensis
March 6th 2003 Choshi Chiba Japan
This is the same bird as the first Ring-billed Gull for Japan that was found at Hasaki on January 19th 2002.So far, this is supposed to be the only Ring-billed Gull found in Japan.

The Ring-billed Gull behind a Kamtchatka Gull.

The Ring-billed Gull (center), and 3 Kamtchatka Gulls
Kamtchatka Gulls show really various looks. But the face of the Ring-billed Gull stands out among a flock, and can be picked out easily.