Lesser Black-backed Gull 3CY, June
10 2016, Utrecht, the Netherlands.
Pale-grey bird, with very advanced moult in primaries: right wing P1-P8 fully replaced, P9 growing, P10 old 2nd gen. Left wing: P9-P10 old. New tail and new secondaries.
Always a possibilty this is a retarded 4CY bird, but then P10 would have been much abraded probably.
|