Kumlien??

[totoguti]

Hi all:
This gull was sighted yesterday 30.1.2013 in NW Spain.
I think this is a kum, but I have no experience....
Any opinion about it ?
Thanks in advance
Antonio

More pics at:
http://gaviotasyanillas.blogspot.com.es ... mlien.html

IMG_3681 (1) copia.jpg (384.7KiB)Viewed 3661 times

[marsmuusse]

Hi Antonio,
From this picture it seems the outer-webs of the outer primaries remain relatively pale, without a suggestion to get dark towards the primary coverts. Of course, an open-wing would help here, have a look at:
http://gull-research.org/glaucoides/gla ... nk001.html
and:
http://gull-research.org/glaucoides/gla ... ar019.html

[totoguti]

Hoi Mars:
Thanks a lot; you have some open-wing pics at my blog (Link over the pic).
Groet.
Antonio

[oskarn]

My thoughts on this bird (based on the photos on Antonio's blog):

1) The bird is bulky with a "Herring Gull-like" head shape and a long dark bill.
2) It's got quite plain tertials as well as a semi-plain tailband.
3) at least p7-p9 show the darker outer webs with a J-shape at the tip.

All this should point towards kumlieni why I would say; shouldn't this be enough to call it a kumlieni?

Best regards,
Oskar