Got back from two weeks on the east coast, only to find that a damn heron has been hanging around here. The neighbour's girl chased him away once, but he definitely got the two goldfish out of the turtle pond (mosquito control) and probably about half of the fish from the pond. (Had about 40 or so.) Hard to tell exactly, since they won't even come out to feed. I had a net over the pond, about 5' up and hanging down around the edges, but I guess he figured out a way to get at the sides of the pond anyway.
John