Lesser Black-backed Gull 2CY, June
18 2016, Katwijk, the Netherlands.
All wing-coverts (except 5x outer lesesr coverts) replaced for 2nd gen on winter grounds. Most of tail replaced as well prior to north bound migration but 2x old brown juvenile rectrices well visible. Secondaries and primaries were not included. Now in June, the complete moult has started: P1/P5, P2 growing. PMS=10.
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