That's what I was thinking. A separate ground wire. But then I was thinking, I have a tree above this coop. Predator could drop down on roof and climb down also. So was thinking I could staple chicken wire or fencing behind the wiring, on the wood, and ground that - so there'd be a metal 'pad' they step on whether from above or below. But as you can see, the peeps on that thread seem to think the wood boards would be enough grounding. (hey, I created that thread to not clutter up this one and look here I am cluttering up this one! Sorry!

)..
Not sure my relocation of my old biddies will work - the lady is nice and has a ton of land (if you are on here, hi!!) but I think she wants lots o' eggs. I was honest and said they were 2+ year old hatchery hens that have been egg machines so after the next molt the eggs are probably gonna slow down a lot.