nominate Lesser Black-backed Gull (L. f. fuscus)

(last update: 10-2-2011)

Larus fuscus fuscus (sub)adult, April 08 2011, Ashdod. Picture Amir Ben Dov.

Adult-like bird, with obvious mirrors on both P9 and P10, black markings on the bill and the outer greater underwing covert is dark.
Not territorial in the breeding area; instead still in Israel by April, which suggest a non-breeding sub-adult. 4cy birds can sometimes be aged by dark markings on the underwing coverts or black markings in the tail. However, many 4cy and certainly 5cy birds are very difficult to age.