Lesser Black-backed Gull 3cy, June 08 2013, Noordwijk, the Netherlands.
Advanced 3cy LBBG with irregular moult in primaries: P1-P6 replaced and moult arrested, P7-P10 old 2nd generation. Complete moult started again, with P1 tip just visible. Returned from wintering grounds with completely new tail. All secondaries old 2nd gen-like.
Probably intermedius.
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