Buy a little terrior and train it to dig up the yard. Mine used to leave a gift on the doorstep once in a while....so proud.

Get some possums to help. They chew em up like candy.
They come and go, but keep to themselves if you don't leave out cat food.

Pull some black rat snakes off of the roads if you see any next spring. There's also gray, red corn snake varieties in different parts of the country. Milks and kings too. Learn what is local. They'll sniff em out better than a bunch of scent hounds and eat them all. Make sure you have an extra long pillow case in the car at all times. Don't injure it with s stick if you find one. Study videos on how to catch them.

These are purpose built better than anything else I've ever seen that's made by mere men.

HC