Lesser Black-backed Gull (graellsii) 4cy 23 July 01 2011, Amsterdam, the Netherlands. Picture: Maarten van Kleinwee.
Ringed as pullus on June 13 2008 at Moerdijk, The Netherlands. Fourth-calendar year Lesser Black-backed Gull. Plumage wise, this individual is indistinguishable from an adult, but note pattern on greater primary coverts.
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