About 8 AM: Lots of activity with everyone in breeding plumage. Saw a dozen or so ring- necked ducks who have been hanging there for some time. Two pairs of hooded mergansers, a pair of Common loons, two pair of Bufflehead, a lonely pied-billed female grebe, and hundreds of swirling tree swallows. Gusty north winds made the south end of pond pretty rough and barren.