On a farm, you learn about mice the expensive way. I've had them shred the wiring in a tractor the week before planting, empty half a bag of feed in a night, and nest in the insulation of the farmhouse while we slept right above them.
For years, I did what everyone around me did. We put out poison bait and hoped. Then one winter, we lost one of our barn cats, and a neighbor found a dead owl near his grain bins. Poison doesn't stop with the mouse. It travels up the chain, and it can end at your dog or your grandchild's hand.
So I started paying closer attention to how mice actually move. And here's the thing most people don't know: they follow the harvest. Once the fields are cut, their cover and their food disappear at the same time, and the first cold nights send them straight toward the nearest warm building. That's usually your house.
If you're ready before that happens, you're turning them away at the door. If you're not, you're pulling a whole family of them out of your walls. Only one of those jobs is easy.