Lesser Black-backed Gull (graellsii & intermedius)
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Lesser Black-backed Gull 3cy 4H July & August 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.
below: Lesser Black-backed Gull 3cy 4H July 24 2013, Utrecht, the Netherlands. Picture: Herman Bouman.
Graellsii, with grey saddle. Complete moult: P7-P10 old.
below: Lesser Black-backed Gull 3cy 4H August 04 2013, Utrecht, the Netherlands. Picture: Herman Bouman.
below: Lesser Black-backed Gull 3cy 4H August 09 2013, Utrecht, the Netherlands. Picture: Herman Bouman.
