We have been having some problems with packrats in the Chicken Yard and around the Meat Chickens. So I remembered this idea for controlling rodents. I do not recall where I saw it so unfortunately, I cannot give due credit. But we decided to try it by the chickens and in the gardens.
It is just the poison blocks hung on a piece of stainless fence wire. The rats/mice/voles go in through the legs on the bottom and eat the poison hanging down. But the chickens/dogs etc. cannot get to it, so it is safe to use anywhere.
I might need to chop the legs off a little bit? We put them out today. I'll check them in a week or so. If the rats are not finding the poison, I'll shorten the legs a bit and try it again. None of the joints are glued so I can make modifications as necessary.