American coot to the left and willet to the right. Not positive this is the black bellied plover in middle
Chest mottling pattern something I do not recall seeing before. Just for fun, I stared at the Rock Sanpiper for a while before giving up.
Edit: was intending to crop photo to present only the two birds in front of the Northern Shovelers.
The Grey Plover (Pluvialis squatarola), known as the Black-bellied Plover in North America, is a medium-sized plover breeding in arctic regions. It is a long-distance migrant, with a nearly worldwide coastal distribution when not breeding.