Lesser Black-backed Gull 3cy 46 April 22 2013, Utrecht, the Netherlands. Picture: Herman Bouman.
Probably ringed as pullus on 02 July 2011 at Maasvlakte (Amazonehaven), Zuid-Holland, the Netherlands, by Hans Keijser and Roland-Jan Buijs.
Slow graellsii, with still no grey saddle. Complete moult not started.
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