Great Black-backed Gull (Larus marinus)(last update: July 12, 2015) |
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Great Black-backed Gull (Larus marinus) 2cy: June 14 2002, Le Portel - Boulogne sur Mer, France (50.42 N - 01.34 E).An individual with all wing-coverts moulted to second generation. This bird is moulting the rectrices. |