Lesser Black-backed Gull (graellsii & intermedius)
L. f. graellsii 3cy H595 July 2008 & October 2009, Westkapelle, the Netherlands.
Ringed Larus fuscus graellsii from Helgoland - N Germany, overlap zone of graellsii "Dutch intergrade" and intermedius.
L. f. graellsii 3cy H595 October 06 2009, Westkapelle, the Netherlands.
P1-P8 fully grown. Complete moult at very low pace, with the moult gaps closing, P9 growing and P10 still present. Outer secondaries replaced for 3rd gen, but the last group is still 2nd gen, and there seem to be no secondaries missing. Tail completely white.
below: 2cy H595 (argenteus) July 11 2008, Westkapelle, the Netherlands. Picture: Ies Meulmeester.
P3/P8. Common sequence.