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

(last update: 23-11-2009)

Larus fuscus fuscus 2cy CK64 July 14 2007, Tampere Finland. Pictures: Hannu Koskinen.

Retarded 2cy Baltic Gull Larus fuscus red "CK64" in active moult by July.
Moult in the primaries is obvious, but complete moult stage difficult to interpret from these images.
In the ringht wing, P5-P10 still juvenile, in the left wing P6-P10 juvenile. Inner primaries just replaced.
In the right wing, all secondaries are still juvenile.
Most (all?) tail-feathers were already replaced earlier in the season, probably on the wintering grounds when wing-coverts were replaced.
Active median coverts moult again, fresh and growing feathers.