For anyone interested, the fence is installed and wired up. Didn't see the heron all weekend. I got up this morning around 5:30, just in time to see him land near the pond. I watched him from the back deck as he walked up to the fence,he then walked around the entire pond but didn't try to get through. He ended up where he started, just standing there like a cow looking at a brand new gate. About five minutes later he took off, maybe just sizing things up for now? I suppose time will tell.