Up here in SW ND the mice are a different breed. They survive the insanely cold winters by huddling up in our glove boxes, heater boxes, air filters, hell I've even seen em living in hoods going in and out of the little holes. I've seen everything from 2 bedroom mouse apartments to full on mouse mansions.
I say they're a different breed because these things literally eat and **** that Dcon poison stuff like it's a main course for all three meals of the day, even a damn midnight snack, logs of greenish blue mouse turds everywhere.. it's truly unbelievable. The poison worked for a while until they added the crap into their diet like it was no big deal.
I like the bucket traps most. But I've watched mice climb up the bucket and check it out only to jump off cuz they're too damn smart. We've tried dryer sheets and soap, those work ok but the best medicine is to keep all your vehicles active to some extent.
The worst was a rambler American we had on the farm, i had no plans of ever doing anything with it but I didn't want it to sit, so I was gonna do something with it but I opened the trunk and the whole entire trunk was filled with a mouse nest. This is the mouse mansion I mentioned earlier, the most unbelievable mouse nest I ever saw, I saw it and said nope I'm good.
Ive been pulling the heater system out of my 70 c50 as the mice made a nice apartment complex in it.