It's probably fair to say that separating a Kumlien's Gull from an Iceland Gull is anything but straightforward. A good deal of time has passed since last year's major influx of white-wingers, a fair proportion of which seem to have originated from North America. The numbers of Kumlien's Gulls being recorded last year seemed to be remarkable and it certainly stood out amongst previous years and this year. Not surprisingly then that this rarer race of the Iceland Gull requires good supportive evidence to be recorded as an official record, and here in Glamorgan WRP decide over which ones will make the grade. I have recently started trawling through photos that have been posted online on this blog or the Bird News Services to try and find useful record shots. The experts in this area have given a fairly simple requirement for Kumlien's Gulls to be separated from Iceland Gulls safely. This involves having a good quality shot which shows the bird in flight. In particular the flight shot should demonstrate that the outer primaries look darker than the inner primaries, and that the outer webs of the outer primaries look dark compared to the inner webs. My understanding is an Iceland Gull type that looks very dark and captured well on camera standing or sitting will not be enough to confirm it as a Kumlien's Gull. Photos showing an open wing are crucial.
No-one has sent to me any descriptions relating to Kumlien's Gulls from from 2014 so far. A few people have responded to my request for shots of flying birds. Thus far I am confident that two 2nd Cal year birds ranged widely between Blackpill, Crymlyn Burrows and Fendrod Lake. Although one of the birds seems right on the margin of being identified to race safely. Caution might prevail there. Both birds will be submitted as 2nd Cal year Kumlien's and I think I have enough photos to present a case for both.
The Burry Holms Kumlien's Gull from 2014 are very poorly represented with photos showing them in flight. Another way to write that is that no-one has provided me any flight shots of Kumlien's Gulls from Burry Holms in 2014, and sadly I never connected with one there. My request therefore is for anyone who has in their possession decent flight shots from this site please send them to me. Thank you.
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| Kumlien's Gull Fendrod Lake 23/3/14 |