Lesser Black-backed Gull graellsii EM41 19CY-20CY, May 23 2014 & March 30 2015, Maasvlakte, the Netherlands. Picture: Merijn Loeve.
Ringed as pullus on July 10 1996 at Maasvlakte, the Netherlands. Now in 19CY & 20CY.
Above:March 30 2015.
Below: May 23 2014.
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