Some of our Kansas rats/rodents practically carry back our feral cats to their litters. We grow so much grain here the rodents get really big. I have had them attack full grown rabbits and chickens. I set a trap for one residing in my shed and I came back and my rat trap just had fur in it. I think they call them trading rats or pack rats. We have feral cats but the cats and everything else fear them. I found about 50 cherry tomatoes from our garden in this rats nest he planned to use for food. I fed him poison and he ate it and didn’t die. He’s on my list but I’m not sure if even a rat terrier would do the trick. If this rat trap does not work I’m going to find one meant for racoon’s. His nest I ripped out was several feet in diameter. I had to go through it and take back my screwdrivers etc. He stole for his nest packed in with weeds and branches. The feral cats help us a lot with mice. When I was bailing once I saw at least 30 rodents running in front of my tractor and grain fields are worse. I hate snakes but around my house you would think I love them because there are plenty of them because I don’t kill them.