Hi all. As suspected by Gene Scarpulla, I did confirm that there are now at least two different Iceland Gulls. One, has a more black bill and one primary missing. Which I saw today, just as I pulled up, it jumped up and flew back toward the landfill. I waited around for about 10 minutes and an Iceland Gull returned, but it was not the same one. This second bird has more lighter colors in the bill and is not missing any of the outer primaries.
Also, the usual 4 Lesser Black-backed Gulls were hanging out with the masses of the other Herrings, Greater Black-backed, and Ring-billed Gulls.

Sean McCandless
Cecil  Bird Club President
Elkton, MD