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Herring Gull 0731 15+cy, January 31 2014, Boulogne-sur-Mer, France. Picture: J-M Sauvage.0731 orange and metal BTO #GN13596 ringed as adult on November 13 2003, at Gerrard Cross landfill site, Beaconsfield, Buckinghamshire, UK, 51.35N 0.38W. Probably male. Recoveries: White mirror on P10 merges with tip. |