Mike Todd emailed after my post yesterday. He thinks the plover identified as American-Golden is a second Black-bellied, based on "indistinct cap, fairly short primaries, white bellies, very cold plumage tones". Leslie and I called it a Golden based on finer head, neck and bill, plus the conspicuous smudge behind the eye. The cap seemed darker in the flesh. I wanted to stay for better photos and watch for the black axillaries in flight, but we were already late for dinner with friends.
Michael Sledjeski Del Rio TN