Hmmm. Two Semi-palmated Plovers and five Snowy Plovers (I think).
The following bird then alighted on a nearby structure:
I have a lot of difficulty identifying the nondescripts. Maybe the field guide will help.
Sometimes it is nice to have no doubt about the birds: A Brown Pelican and a Double-crested Cormorant.
Later that morning we went for a drive along the west shoreline of the Yucatan peninsula. At one point we watched a large flock of Forster's Terns fly overhead.
Here they come again, just skimming the water.
Here is a table summarizing the day's observations.