seal gaps to stop mice 3

https://getrattrappingsealingstore.wordcanopy.com/posts/why-rat-trapping-and-sealing-is-the-most-effective-long-term-rat-control-strategy

Mice can squeeze through gaps as small as a pencil eraser, so sealing entry points is one of the most effective ways to keep them out. I use steel wool and caulk around pipes, vents, and any cracks in the foundation; the mice can't chew through the metal, and the caulk holds it in place. It's a simple, low-cost fix that makes a big difference.