This funny little guy was running around our car at Toadstool Geological Park in Nebraska this past week. I have some poor guesses but no clue! Only managed to get this quick video. https://photos.app.goo.gl/mJ7hJsakH7P3AubA8
Seen at Bombay Hook refuge in Delaware along the bay. Noted avocets, dowitchers, and egrets certainly although I'm not sure what else is there especially the brownish/white smaller ones in the front group.