A small female Bufflehead slowly cruising the opposite side of the pond apparently watching for predators. On my approach, some ducks slipped back into the reeds before I could fully survey the scene and set-up. I suspect they were the other members of her flock, as I received her undivided attention. She just paddled about. She made a couple of quick dives as if to say 'watch me... see, nothing here... move along.' The others did not re-appear. So I took a few shots of her and the hint.