This method reportedly has no secondary action, meaning that if the baits are carefully used and placed out of reach of non-target animals, there should be no danger to pets and or chickens. I use mine outside the run and under the coop.
After rat trapping developed into a sick and twisted hobby, (set trap, snap, remove body, reset trap. SNAP!) I went for more drastic measures.
I mixed 1 part peanut butter to one part plaster of paris. Add olive oil (not water) until it's a thick paste. Roll into balls and toss under coop and...