Lesser Black-backed Gull graellsii WH4T adult, March 28 2014, Maasvlakte, the Netherlands. Picture: Merijn Loeve.
Ringed in winter at Rainham tip (greater London), UK. Breeder in Maasvlakte colony, the Netherlands.
Much black on bill suggests immature bird / younger adult.
![](../lbbgnovdec/images/merijn/O-WH4T Europoort april 2014, geringd in London, wintervangst , broedvogel europoort 01.jpg)
![](../lbbgnovdec/images/merijn/O-WH4T Europoort april 2014, geringd in London, wintervangst , broedvogel europoort 02.jpg)
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