Lesser Black-backed Gull graellsii GS 9CY, March 23 2015, Maasvlakte, the Netherlands. Picture: Merijn Loeve.
Adult Lesser Black-backed Gull in summer (alternate) plumage, ringed as pullus on 14 June 2007 at Moerdijk (Shell Chemie-West), Noord-Brabant, NL5141.00N 433.00E. Ringed by Roland-Jan Buijs.
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