On July 21, 2012 there was a deep water Pelagic trip to the San Juan Seamount and Santa Rosa Ridge from Santa Barbara, CA. Laura Keene took this photo of a Sabine's Gull...
Sabine's Gull | Flickr - Photo Sharing!
On the West Coast, Sabine's Gull is a regular transient (often in numbers) and much easier to encounter than on our East Coast.