I really need some advice on how to eliminate rats. I live in middle Tennessee, on 17 undeveloped acres. Until we got chickens, we had only had issues with mice in the house and those were caught and eliminated in snap traps or glue traps. Since getting my first chicks a little over a year ago, about five months in or so, we have developed a rat problem. And I don’t mean a small issue with one or two here or there, I mean a HUGE rat problem. Their droppings are everywhere, they’ve taken over an entire nest box for their toilet, they’re in the walls in the house (I live in a trailer so it’s not hard for rodents to get into it), I see anywhere between one and five in the nest box they’ve taken over when I go out to lock my chooks up late at night, they’re EVERYWHERE and they are absolutely HUGE! I can’t keep them out of a single building on our property! We put out poison under the house where the chooks can’t get to it and that will help for a week or two after they eat it and die off, but then you’ve got the smell if they expire under or around the house, and then they’re back! I’m losing my mind! Please help, any advice is GREATLY appreciated (because all of my cats are lazy freeloaders)!