Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull (argenteus) Y.BZX 2CY, October 10 2016, Katwijk, the Netherlands.Data pending; ringed as pullus in 2015 at Forteiland - IJmuiden, the Netherlands. P10 fully grown. Limited partial autumn moult in left wing: TT1 and LLC2. |