These two birds were photographed on Feb. 15, 2012 at the Cockroach Bay Aquatic Preserve in Ruskin FL. I have no clue as to what the first bird is, while I think the second and third pictures (the same bird) are of a Lesser Yellowlegs…am I correct?
Since I can’t post a photo in comments, I hope you don’t mind that I am doing it here. My photo, shown below, is definitely a Black-bellied Plover which was rescued by the Suncoast Seabird Sanctuary and unable to be released. The photo was taken in late March, but has mostly winter plumage. Your photo shows a dark eyeline on the bird, whereas the Black-bellied Plover here has a distinct white eyebrow. It is hard to tell if your bird has a marked breast or distinct feathers like this Black-bellied Plover. I checked winter plumage and juvenile images in guides and on the ‘net and they all have the white eyebrow. I’ll check further later. -SLB