Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull argenteus 1Z sub-adult, August 19 2010, Westkapelle, the Netherlands.Data pending. Ringed in SW of the Netherlands. P5/P8. Small mirror on P10. Dark iris. Brown primaries, dark iris and small mirror on P10 may indicate sub-adult. |