Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull (argenteus) CFAK 4CY (3rd cycle), March 26 2011, Koksijde, Belgium. Picture: Peter Adriaens.Ringed as pullus in 2008, at Zeebrugge, Belgium. Adult-like inner and central primaries. Small mirror on P10. |