Herring Gull BTO GC89891 3cy (argenteus), October 01 2010, Boulogne-sur-Mer, France. Picture: J-M Sauvage.
Bird ringed in the U.K. This bird was ringed by North Thames Gull Group as age 2nd year, sex Unknown on 21-Mar-2009 at Pitsea Landfill Site, Essex.
Complete moult at P8.
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