The lesser scaup (I brought the camera and looked) on the Tidal Basin are still
there, and have been joined by about 100 buffleheads, a couple of common
mergansers, and at least 4 horned grebes. In case anyone wants to combine a
cherry blossom session with some migratory waterfowl watching. I go every year,
and I have never seen anything but a mallard, Canada goose, or cormorant there.
Maybe I just went at the wrong time.