How do you evict bats?

[Just Don]

I have a one story OLD (Complete with square nails)rental house I have been trying to replace some rotten siding and sheathing on. I took off some on cold north side and find bats all the way down to the bottom of main floor walls ,,,nestled in the pink fiberglass put in on renovation maybe 20 years ago.

How often to bats HAVE to go out and feed?? Do they hibernate all winter,,,like inside this wall?? Anything you can put in a house attic AND walls that would repel bats and not offend people living there??