Possible Vega Gull (Larus [argentatus] vegae)
January 8, 2007
Warrenton Sewage Ponds, Clatsop Co. OR

I fully understand that these photos
probably are not good enough to get 
the job done, but they're the best I 
could manage.

I also saw the bird in flight.  The rump was white and the back was very pale.
There was a very high contrast between
the dark parts of the wing and the light
parts.