On Friday evening just before 6:30, the relatively sedate Ruddy Ducks, 3 visible Northern Shovelers and a few Hooded Merganser seemed to be watching from a safe distance as at least 20 male and female Common Merganser frisked around, the males doing their best Friday night hotrodding moves.
A speedy little Grebe was nearby (in the dusk, appeared to be a Horned).