You can try putting dog poop into any open holes. Sometimes a predator smell will do it. Cat poop works too.I don’t have pictures right now. I could take some later (it’s roughly 108 degrees here today!!!) we haven’t placed the wire down very far. But the rats are digging tunnels and the piles of dirt they are pushing up is about a foot or more deep in places!!! And they are tunneling from all the way across the back yard (several hundred feet). I’ve tried everything from putting ammonia into the tunnels, moth balls, gopher gassers. You name it I’ve tried it. The last 2 weeks I’m completely worn out. I find more holes where they tunnel out or in. And they tear up my fencing. We have an old dog out back but he’s completely blind and bless his poor old heart, he tries to find them when he can. Every day I’m coming in from outside in tears because I don’t know what to do. I even told my husband we need to sit out there as still as possible and pick them off one at a time with a firearm.