I think that this is a long billed dowitcher but I never heard it call so I am not sure.
Similar in size to killdeer, identified by call.
Alvar Bay Nature Preserve
Found roosting at our campground, basically the only interesting bird that we had there (although Botteri's Sparrow was nice). Snapped a few photos and then left it alone.
Perched on roadside fencepost.
Blind Souris Valley roadside.