Unusual 3cy 'white-winged' gull - 'Viking'?

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richard lowe
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Joined: Thu Oct 18, 2012 7:05 pm

Unusual 3cy 'white-winged' gull - 'Viking'?

Post by richard lowe » Sun Feb 12, 2017 8:54 pm

This odd looking presumed 3cy 'white-winged' gull was videod at Cotham Tip, near Newark, Nottinghamshire, England on 3rd February 2017.

In flight it looked like an Iceland-type, with evenly pale primaries and no strong contrasts in the plumage. On the ground it was small-to-average Herring Gull in size.The bill looked too long and deep for an Iceland, more like that of a smallish Herring Gull and was mostly dark with an obvious pale tip. The primary projection beyond the tail was slightly greater than the bill length i.e. more 'Iceland' than 'Glaucous'; the eye looked dark in the field but 'mid brown' on the video-grabs; some adult-type grey feathers were present on the mantle and scapulars. Initial impressions suggested 'Kumlien's' but subsequent examination of video footage raised serious doubts. (See video-grabs below.)

I feel that this has to be a hybrid of some sort as it doesn't match typical Iceland or Kumlien's but what combination? 'Viking' Gull (Herring/Glaucous) seems the only possibility but if so, this bird doesn't appear typical.

Any thoughts greatly appreciated.

Kind regards to all, Richard Lowe (Derbyshire, England.)
Attachments
Kumliens type 2w Cotham 18 3 02 2017 ED.jpg
Kumliens type 2w Cotham 18 3 02 2017 ED.jpg (699.63 KiB) Viewed 99 times
Kumliens type 2w Cotham 17 3 02 2017 ED.jpg
Kumliens type 2w Cotham 17 3 02 2017 ED.jpg (779.9 KiB) Viewed 99 times
Kumliens type 2w Cotham 16 3 02 2017 ED.jpg
Kumliens type 2w Cotham 16 3 02 2017 ED.jpg (869.63 KiB) Viewed 99 times
Kumliens type 2w Cotham 11 3 02 2017 ED.jpg
Kumliens type 2w Cotham 11 3 02 2017 ED.jpg (854.24 KiB) Viewed 99 times
Kumliens type 2w Cotham 9 3 02 2017 ED.jpg
Kumliens type 2w Cotham 9 3 02 2017 ED.jpg (684.65 KiB) Viewed 99 times
Kumliens type 2w Cotham 8 3 02 2017 ED.jpg
Kumliens type 2w Cotham 8 3 02 2017 ED.jpg (871.47 KiB) Viewed 99 times
Kumliens type 2w Cotham 7 3 02 2017 ED.jpg
Kumliens type 2w Cotham 7 3 02 2017 ED.jpg (823.23 KiB) Viewed 99 times
Kumliens type 2w Cotham 3 02 2017 ED .jpg
Kumliens type 2w Cotham 3 02 2017 ED .jpg (864.15 KiB) Viewed 99 times

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