the one on the left
There are two Calidris in the lower right. I'm pretty sure I can see black legs, but, as usual, that could be mud.
Both these images were cropped at the same scale so you can compare sizes. The second one shows an individual with a down-turned bill.
This is the only "peep" species which winters commonly in large numbers in this area. There can be a few Westerns around, but not many.
The calidrids or typical waders are a group of Arctic-breeding, strongly migratory wading birds. These birds form huge mixed flocks on coasts and estuaries in winter. They are the typical "sandpipers", small to medium-sized, long-winged and relatively short-billed.