Gulls in NW Europe
(last update: September 25, 2011
Herring Gull argenteus 2cy, December 02 2012, Katwijk, the Netherlands.
Probably argenteus, but bird not ringed. Already grey saddle, more common in argenteus than in Scandinavian argentatus. Bird left could well be 2cy argentatus.
Showing typical 2nd gen flight feathers: dark centred secondaries, brown wash on inner primaries, no large white tips on primaries, full tail-band.
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