Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull (argenteus) ZR 4CY (3rd cycle), March 26 2011, Koksijde, Belgium. Picture: Peter Adriaens.Ringed as pullus by Roland-Jan Buijs, in summer 2008 at Vlissingen, The Netherlands. Adult-like primaries and secondaries. Mirrors on both P9 and P10. |