argentatus?

JanJ · Post by **JanJ** » Tue Dec 29, 2009 10:13 pm

Hi all.

What are you people's impression when seing Alan Dalton's gull - taken in Stockholm today? It looks a bit dark and the scapular pattern seems odd for a 2cy argentatus. A LBBG is a better option of course, I see that now

Jan

lou bertalan · Post by **lou bertalan** » Wed Dec 30, 2009 8:22 am

JanJ wrote:Hi all.

What are you people's impression when seing Alan Dalton's gull - taken in Stockholm today? It looks a bit dark and the scapular pattern seems odd for a 2cy argentatus. A LBBG is a better option of course, I see that now

Jan

a graellsii in winter in stockholm???

lou

JanJ · Post by **JanJ** » Wed Dec 30, 2009 9:28 am

Some more pic.
I´m not specifically suggesting graellsii - but something within the LBBG ssp. Or is it just an odd argentatus?
Anyway - a graellsii in winter Stockholm - stranger things has happend!

Jan

lou bertalan · Post by **lou bertalan** » Wed Dec 30, 2009 11:55 am

well, could of course be an intermedius but scapulars do look rel. pale for that especially for those which almost get black as adults. but i can't give any better suggestion either. heuglini/barabensis seem off as they'd have a much more advanced plumage by now.

JanJ · Post by **JanJ** » Thu Dec 31, 2009 4:27 pm

I know that it is streaching this to much - but some showing more of the wing pattern on this 2cy LBBG, presumable graellsii.
Jan

lou bertalan · Post by **lou bertalan** » Thu Dec 31, 2009 6:22 pm

maybe you saw the p10 mirrors... how often does this occure in graellsii??? i recall having seen this in 2nd generation heuglini primaries, but graellsii?

lou

JanJ · Post by **JanJ** » Thu Dec 31, 2009 8:38 pm

Yes I did Lou.
Not a common feature in 2cy LBBG or HG but does very rarely occur. I can verify for just 1 seen by myself over the years!

http://www.gull-research.org/lbbg2cyd/2cynovpic9.htm

Jan

Theo Muusse · Post by **Theo Muusse** » Fri Jan 01, 2010 9:06 pm

When we combine all features, time of year, place or whatever, I get a strong intermedius feeling.
Its a slender bird with a slender bill (female) with obvious signs of LBBG. The pattern of the freshest scaps with only a shaft streak darker, the dark grey colour of the ad-like feathers, the inner primaries, yes, I feel for a female intermedius. Despite the mirror on p10 and the tail-barring.

Theo

JanJ · Post by **JanJ** » Wed Jan 13, 2010 7:59 pm

Another image og this LBBG taken on 7 Nov. 2009.

Jan

JanJ · Post by **JanJ** » Mon Feb 22, 2010 3:52 pm

Same gull again on 21.2 2010 and 22.2.2010

http://www.artportalen.se/birds/gallery ... eid=192674

http://picasaweb.google.com/zvenssonzzz ... BackedGull#

Any thoughs?

Jan

www.gull-research.org

argentatus?

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