Last night while feeding, Pam found a mouse in the barn. It was sitting on top of the grain bins that are built into the stalls (and mouse-proof by the way). She swung out the bin which is mounted on a door and the mouse didn't move. We called the cats, even put two on top of the bin with the mouse, they were not interested. Pam decided it was Valentine's Day so she set it loose across the street.
Here are some ways to keep mice out of your barn:
1. Secure your grain. Tight fitting/sealed lids on trash cans, rubbermaid containers stored in a secure room. I described our grain bins (I'll picture them someday), they are awesome. Extra grain is stored in the tack room which is a fully sealed/heated room.
2. Cats. Barns with cats have less mice. I am not a cat person, but will make home for rescue kitties in my barn.
3. Clean up after yourself. If you have food, crumbs or spill grain, it ALL attracts mice. Keep a broom handy and put your crumbs in a sealed trash container.
4. Think you don't have anything for them to eat handy? Look again. Make sure NOTHING gets left out for those buggers to eat.
The following site had some good information about cleaning up after mice:
My favorite hint, if you use traps, spread peanut butter on them, much harder for the mouse to trick the trap!