California Gull — Presque Isle State Park, Erie County; November 26, 2004. Photos by Ben Coulter. This photo shows the bird’s greenish-yellow legs, the heavily-streaked head, and the darker mantle color in comparison to the Ring-billed Gulls on the left.
This photo shows the black extending well inward on the wing from the outer primaries.
This photo shows the underwing, revealing the dusky band running down along the trailing edge.