Foot appears injured.
Photo #3 shows LESA with Semipalmated Sandpiper (for comparison).
Lesser yellowlegs? The beak seems too short.
Pretty late for this species to show up here.
Elizabeth and I had a GREAT time at Tishomingo National Wildlife Refuge -- there must have been some bad flooding a while back, so it looks like visitation has been low... Anyways, we're going back sometime!
Not sure what this little sandpiper is...
The Least Sandpiper (Calidris minutilla) is the smallest shorebird.