Putative Kumlien's Gull (Larus [glaucoides] kumlieni), 4cy, 4.2.2012, Hvide Sande Harbour

This is identified as a putative Kumlien’s Gull due to the fact that there is subtle dark shading on the outer webs of p6-p10, a faint 'ghost mirror' on P10 and the faint dark shading on p6-p9 reach the primary tips.

However, the ID is to be considered tentative as the criteria for Kumlien’s Gull in Europe are being discussed at present. The need to clarify the ID characters has become a must following this winters massive occurrence of white-winged gull on this side of the Atlantic including classic Kumlien’s and Iceland Gulls, but also several types of what people believe is dark-pigmented glaucoides-types rather than true Kumlien’s Gulls.

Even though very faint the pattern is beginning to 'ghost' that shown by adults, with a mirror on p10.

Note that even though faint there is a 'ghost mirror' on P10 and the dark shading on outer webs of p6-p9 reach the primary tips.

Note that even though faint the dark shading on outer webs of p6-p9 reach the primary tips.

Here seen together with one of the 3cy Iceland Gulls.