Observed at around 11:10 AM. Was not there when we passed this spot again at 2:00 PM.
Two Owls, emerging at twilight with Harrier-like flight characteristics. Round facial disc with dark triangular eye-patches expanding to the sides from the eyes.
Gull attacking an injured or sick Mallard, pulling out feathers as the duck weakly tried to swim away. The story resolved out of sight but I don't like the Mallard's chances.
Found under a log, dead and headless, the remains of something's unfinished meal.