Western sandpiper

Thnx Jellis and Geoffrey :)

I agree with the first suggestion by Jellis: Western Sandpiper.

Baird's Sandpipers not since 2012 that I see and to much color on neck.

Sanderling. Western Sandpiper and Baird's Sandpipers have been reported.

Dunlins are not white underneath and I don't think there is any Semipalmated Sandpipers there at least not reported. Still learning to Identify. I would say Sanderling but they are lighter in color above.

smaller than a willet and maybe a little bigger than the Dunlins i have seen in Martinez.

Not all, Westerns have black. What size was it?

Sandpipers have yellow legs?
Dunlin?

Not sure but it looks like a Western Sandpiper