This gull, an adult or near-adult, next to a great Black-backed, is the size of a Herring Gull, has pinkish legs, a very dark mantle, appears to have a dark line through the eye and has some dark markings or perhaps even debris on the bill.
If you would like to send comments about it to Taberzz@aol.com please do.
The location is not being disclosed at this time.
Brian Taber