www.gull-research.org

At the paler end, there may be confusion to separate it from birds with hyperboreus influences. But the darker end is nice as well...
2cy HG - IJmuiden, Holland, 29 January 2010.

Maybe from Iceland?

Theo

Obviously straying off topic because this is a second winter bird but quite an unusual plumage! The ring was Dutch and probably applied before the bird was released from care. I don't think this is a local Herring.

Today, Katwijk beach, Netherlands.

Another one taken recently by Chris Gibbins.

http://2.bp.blogspot.com/_JXeDixaPw40/T ... 7E1964.jpg

JanJ

I received some images by Kjeld, a bird ringed in Copenhavn on 24 February 2011. And photographed again with ring.

Herring "Choco" Gull in much better shape now, as he wears his yellow ring with pride.

The "darker end 1st winter Herring Gulls" remain an interesting item. Over the last month, we saw extremely large flocks of Herring Gulls at the beaches, with groups of several 1,000's congregated together at small areas. After some stormy days, large colonies of American jack knife clam (Ensis americanus) became available.

And a dark one 2cy from the Netherlands in Wijk aan Zee. 5-2-12

Another one here by Jörgen Bernsmo Sweden:

http://www.pbase.com/slisch/image/141141404

JanJ