Nice photo. Good sharpness and feather detail, HA is nice as well. I was wondering what this would look like with those two Semipalmated Sandpipers removed? Oh and speaking of Semipalmated Sandpipers, the principle bird in the frame is an immature Sanderling :D
Very nice image of the Sanderling. Nice angle, and sharpness. My eyes are distracted by the partial birds on the left and the relatively bright orange and green vegetation in the background. Just toning the vegetation down would help IMHO. Another vote for remove the other birds.
Lovely lazy pose on one leg, and the low angle works for me. Moving to your right slightly would have eliminated the BG below the tail, and I would chase the other two out the frame.
Angle, soft light and sharpness look very good. I might darken the pupil a bit. I would prefer if only the resting bird were on the left and if it were not clipped.