Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull argenteus 2CY, May 22 2014, Katwijk, the Netherlands.Juvenile flight feathers and coverts. Scaps replaced. Complete moult advanced: P1-P2 fully grown, P3 growing, P4-P6 missing, P7-P10 old juvenile. |