Im not sure if it's because of the dry spring we had but I have had more birds visiting my pond this spring then ever. So I can imagine its not long before the Heron start coming around. I was thinking if I could make a fishing line fence around the outside, would that work to keep him out? Figure I could make it so he can't climb over or under it. I really don't want to cover the pond with a net, I will if I have too....