Gulls in NW Europe
(last update: September 25, 2011
Lesser Black-backed gull 5cy (graellsii) D0 May 05 2011, IJmuiden, the Netherlands.
Bird from Moerdijk, the Netherlands, ringed as pullus June 06 2007. In all respects a local bird, but P7 and S1 not fully grown. Also, P8-P10 seem to be more brownish black, while P7 more intense black on the medial band.
