Larus delawarensis
Second winter
February 23rd. 2002
Frognerkilen, Oslo, Norway
The bird is not ringed, but the repeated occurrence at the same site at the same time of the year in a corresponding plumage (not to mention it was the first RBG ever in Oslo) leaves little doubt that it is the same bird. Pictures of it in first winter plumage can bee seen here.
Posted 12.06.2002
