Larus fuscus fuscus adult, August 04 2002, Stockholm, Sweden.
An adult fuscus with tertial #5 showing a pronounced dark centre, which may be an indication for immaturity. There is no black on the bill and the P10 primary mirror is rather large adult-like. An individual which is not really easily aged and could be a sub-adult.
The tail is all white and completely present.
|