jsuplick's Identifications

Small diving duck, I thought it might be a pied-bill grebe when @neomyte, who spooted this specimen, told me it was a diving duck, (I could not see the specimen well when I took the pictures. After watching for awhile, it was clear that the diving behavior was different from a grebes. Unlike grebes, which dive, stay under a while, and then pop up a distance away, this specimen would take a dive and pop up much more quickly and not far from the location where it first went under. Pictures 2 and 3 are part of the diving sequence, with picture 2 being the duck on the surface and picture 3 appearing to be mid-dive with wings outstretched on the way down or back up. I don;t picture 3 is a splash of water. The dive did not seem to create strong surface ripples.

See also https://www.inaturalist.org/observations/146644511, a picture taken earlier nearby of what may be the same duck in slightly better clearer light.