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Message: <blockquote data-quote="tittletattler" data-source="post: 1725351" data-attributes="member: 63151">Hi Rainer,I think that this bird is a Caspian Gull.  It's probably not a 3rd winter (4th calendar) Herring as at that age, a Herring should show white tips to at least one or two of the primaries.  I don't think it is a Yellow-legged Gull either as it does not look square headed or deep bellied. Plumagewise I'd expect a Yellow-legged to have darker grey upperparts at this age with perhaps fewer dark shaft streaks remaining in the scapulars. I took this image two weeks ago <a href="http://www.kentos.org.uk/recentsigntings/images/ylg2ndwin1kos.jpg" target="_blank">http://www.kentos.org.uk/recentsigntings/images/ylg2ndwin1kos.jpg</a>To my eye this bird shows the typical structure of a Caspian; small domed head on top of a large, high chested, but still rather elegant looking body. OK, the bill could do with being a little straighter and the legs perhaps should be a little longer and thinner, but even so, it has the look of a Caspian to me.Can you post a larger version of the flight shot here please?  I'd like to see if there is a mirror in P10.Cheers,Andy.Edit - There is a white mirror in P10!  It's a Caspian Gull.</blockquote>