Possible European Glaucous Gull: This is possibly an individual from
northern Europe. Most European Glaucous Gulls have extensive winter
head streaking (basic plumage) similar to this one. We saw over a 1000
adult Glaucous Gulls - all were white headed to very lightly marked. The
above bird also had a brighter yellow bill than most other Glaucous
Gulls. 14 January 2007.