www.gull-research.org

Here a 2nd winter bird with many cach features, seen today at Barneveld.
From your roof?

Theo

is there anything strongly against it being a caspian gull?

lou

Well, the not so contrasting patterns in the coverts, the greater coverts pattern, the large eye, the jizz, the shortish legs.
The head is not pure white. Standing it missed the hanging backside of the body and the wings were not that long too.

But surely there is cachinnans in it!!

Theo

These are the ones I really like.

http://gull-research.org/cachinnans/3cy/3cymarch04.html

Theo

I have no any problem to identify it as Caspian Gull.

Ronald Klein wrote:I have no any problem to identify it as Caspian Gull.

I tend to agree with Ronald. Greater coverts in this age class (at this time of year) with slightly varaible greater covert pattern. Here´s another one of the same individual: http://waarneming.nl/foto/view/4400801

http://www.elisanet.fi/antero.lindholm/ ... iivet.html

JanJ

Dear Theo,
unfortunately, this gull is not ringed in Belarus. Only metal and plastic rings of red color with symbols: KNxx, KHxx, KExx, K7xx, K8xx, K9xx were used in ringing of the complex "argentatus-cachinnans" in Belarus. Yellow plastic rings here weren't applied and I didn't meet L2L2.
I hope for a rendezvous in the spring with this young and fine Caspian Gull on the roof of skinnery plant! But the probability is great that the gull will give preference to a natural environment.
Dmitry

Was it Lithunia then?

Theo

ps, I sometimes am too critical about cachinnans, I know.

L2L2 is from Lithuanian http://www.cr-birding.org/node/363