Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull 2cy, July 18 2013, Noordwijk, the Netherlands.Active moult / complete moult in summer months: P7/P10. Active moult in secondaries and tail as well. Outer secondaries missing/growing. Central and inner secondaries still juvenile. All(?) tail-feathers missing/growing. Many coverts renewed. Greater covert row almost closed. Below: with another 2CY Herring Gull: P5/P9. |