Saw this today, July 30th, in the north georgia mountains. It was really hard to get a look through my 8x42 bins, but I snapped this with my telephoto. I'm guessing spotted sandpiper, though I can't really pick up any color on the legs, no spots (these are two different birds). Also what's going on in pic 4 with the reddish maroon color, trick of the sun, I suppose. Thanks