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subadult Vega Gull? | Choshi, Japan, march 5 (1 Viewer)

HouseCrow

Well-known member
Choshi harbour, Chiba, Japan | 5 March 2020
A subadult (4CY?) argentatus-grey herring-like gull with little white and little black on the primaries.

For now I think the last of my gulls in Choshi harbour. I have been reading up on the subject, looking at a few 1000 photos over the last weeks and of course...i'm drifting further from firm knowledge than I wished for...but that is part of the learning process of course.
But it also means that I don't dare give a real suggestion anymore.

What would you say this is...
Vega is the standard for the area, Mongolian Gull, Taimyr Gull, Glaucous Gull, Thayer's Gull, Glaucous-winged Gull and American Herring Gull are the large white gulls of the area.
All of them were seen in the same period. I have been thinking it could also be another Thayer's.

I have been checking several (near)brilliant gull-sites, www.gull-research.org of course, but also
http://mituyubi.com/kamome/kamome-top.html and
http://strix.main.jp/?page_id=48&tagname=xamerican_herring_gull&lang=en

anyone?
cheers,
Gerben
 

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Apparently I did learn something over the last weeks... it has been confirmed as a 4CY Vega Gull.
Thanks to Peter Adriaens, among other things admin at observado.org

I would have deleted a deadend forumthread, but I can't.. so...

cheers
Gerben
 
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