Great Black-backed Gull (Larus marinus)(last update: July 12, 2015) |
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Great Black-backed Gull (Larus marinus) BTO HT31765 9CY, February 06 2016, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.Bird ringed by North Thames Gull Group near London, in winter on a landfill. Data: Relatively pale iris. |