Lesser Black-backed Gull graellsii G8 5CY, April 22 2015, Sassenplaat, the Netherlands. Picture: Merijn Loeve.
Ringed as pullus on June 22 2011 near Moerdijk, the Netherlands.
Several immature feathers in tertials and coverts but also obvious mirror on P10.
![](../lbbgnovdec/images/merijn/O-GB Sassenplaat april 2014, geringd Moerdijk 2005 01.jpg)
![](../lbbgnovdec/images/merijn/02g8.jpg)
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