ID Help Please

From going through my bird book my best guess is a Greater Yellowlegs but I am not sure.
Photographed at Sweetwater wetlands, Tucson, AZ on 12/17/11.
Thanks for the ID,
Jim

Not a fortunate angle, Jim. And I don't see many shorebirds in winter plumage. The legs seem a little short for a Yellowlegs of either species, although it could be. The water refraction makes leg length hard to judge. The very dark wings would also argue against a Yellowlegs. My first choice would be a Solitary Sandpiper based on the strong eye ring, the bill and dark wings. My second choice would be a Pectoral Sandpiper. although I'd expect a white patch behind the eye and more of a orangish base to the bill. If there was a lot of butt bobbing, then a Solitary for sure.

Here is another angle that may help. It was by itself in a small pond and really did not move much in the short time I was looking at it. The yellow to dark bill matches the Wilson or Common Snipe to me but the rest of the feather/color patterns do not, so that is why I am confused on this ID. Maybe a Long-Billed Dowitcher???
Jim

Definitely a Solitary Sandpiper in winter plumage, Jim.

Agree with Jim. Solitary sandpiper. Dark shoulders, eye ring and greenish legs.

Hey Jim, glad you posted this 'cause I couldn't figure it out either!

Thanks Jim and Phil, after reading your reply I found that the Solitary Sandpiper was posted on the AZ bird list serve.