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

(last update: 18-1-2010)

Larus fuscus fuscus adult, January 06 2010, Ashdod, Israel. Picture Amir Ben Dov.

Unringed adult nominate fuscus by January. P8 fully grown, P9-P10 still growing. The moult gap in the secondaries is almost closed. The secondary row is moulted from two locations: the first moult wave starts at S1 (outermost secondary, next to the first primary P1). Shortly later, another secondary moult wave will start from the body, outwards. The two waves will meet at about S16-S18; the location where you can see the gap in this individual.