Don't you have a garbage system out there?View attachment 2032177
these did the trick for me. Find the rat holes, and stuff a place pac down in there. I spent months digging up their tunnels, my mom buried glass, we blocked off the whole basement (chickens were in the mud room at the time) and nothing seemed to work. Then, we Placed these in their burrows, and a few weeks later there wasnt a rat in sight. The only problem is that the poison is little crumbles of poison, so you’ll want to keep them away from your chickens. And be aware of secondhand poisoning and such.... if you find dead ones, I try to bury them at least 4 feet deep in a plastic bag so they don’t smell and attract animals.
Why do you put poison an plastic in the ground. You're polluting you're own environment this way.
IMO its better to seek for solutions without poison. Poison is never good for the environment and only helps temporarily.
Some other solutions: Keeping cats, put hwc around. Built a new and better coop.