Adult Ross's Gull found by Guy McCaskie at Red Hill Marina, Salton Sea, on Friday, November 17, 2006 around 3 pm. These photos are from the morning of November 18. 1st record for California.

From McCaskie's report on Calbirds:
At about 3:00 PM today I drove up to the area of the boat launching site at Red
Hill and was amazed to see an adult Ross's Gull in the shallow water immediately
to the north of the boat launch channel. The gull then flew to the shore and
proceeded to catch flies on the wet mud. I made a couple of calls to alert
local birders and awaited their arrival. The Ross's Gull remained within 100
feet of the spot where first seen, actively catching flies on the wet mud. Bob
Miller and Kenneth Z. Kurland both arrived before dark, and photographs were
obtained. Terry Hunefeld arrived after dark, but was able to see the bird with
the aid of my headlights. The gull appeared healthy and in fine basic plumage -
no worn feathers, and having a pink wash on the under-parts.