We saw plenty of coots and Double-crested Cormorants, found in this picture, and also scads of ducks: in this picture are Gadwalls, Mallards, two male Northern Pintails, and at top center a female Ring-necked Duck. The large white crescent had me thinking of a possible male Blue-winged Teal when I first examined my photo, but the barely visible white eye-ring marks this as a female Ring-necked.