Lesser Black-backed Gull graellsii L.KAR 6CY, May 01 2014, Maasvlakte, the Netherlands. Picture: Merijn Loeve.
Probably ringed as pullus on June 29 2009 at Zeebrugge (Voorhaven), West-Vlaanderen, Belgium (51°21'0''N 3°11'0''E).
Now breeding bird in the Netherlands.
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