Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull (argenteus) MTAS 3CY (3rd cycle), November 13 2011, Zeebrugge, Belgium. Picture: Peter Adriaens.Ringed as pullus in July 2009 at Zeebrugge, Belgium. Adult-like primaries and secondaries. Faint mirror on P10. |