2cy Iceland / Kumlien's Gull flight shots

amazingly the 2cy Iceland Gull was sat in exactly the same spot as the 3cy Iceland yesterday am before the 3cy bird returned to its perch later -- much better flight shots than on the previous two encounters -- according to some scoring this must be a Kumlien's or intergrade but do we know just how dark Icelands can be and are the palest birds just the extreme of a cline after all? no doubt several theories will appear after this winter -- it will be interesting to compare ideas

scoring this bird on the criteria used in http://www.tertial.us/gulls/tkg.htm it comes out as 15 - 17 well inside the Kumlien's camp on these criteria