Lesser Black-backed Gull graellsii UV.AM 4CY & 7CY, July 2015 & May 2018, Rotterdam, the Netherlands. Picture: Merijn Loeve & Mars Muusse.
Ringed as pullus in 2012 at Zeebrugge (Voorhaven), West-Vlaanderen, Belgium (51°21'0''N 3°11'0''E).
below: Lesser Black-backed Gull graellsii UV.AM 7CY, May 10 2018, Europoort (Dintelhaven), the Netherlands.
Probably female.
![](../lbbgjanmay/images/2018a/uvam_38A6083.jpg)
![](../lbbgjanmay/images/2018a/uvam_38A6084.jpg)
below: Lesser Black-backed Gull graellsii UV.AM 4CY, July 08 2015, Rotterdam, the Netherlands. Picture: Merijn Loeve.
Now 4CY bird, very retarded in plumage development and could have been taken for 3CY bird if it had not been ringed.
![](../lbbgnovdec/images/merijn/B-UVAM juli 2015 te Rotterdam - geringd als pul in zeebrugge 2012 01.jpg)
![](../lbbgnovdec/images/merijn/B-UVAM juli 2015 te Rotterdam - geringd als pul in zeebrugge 2012 02.jpg)
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