bob haller wrote:

I had a infestation at one time, after buying a 100 pound sack of
sunflower seeds for winter bird feeding...

I used a live box trap emptied at least twice a day outside. all the mice
survived except the old grey elderly ones.

I DONT BELIEVE IN KILLING ANYTHING UNNECESSARILY!

How many repeat offenders did you have? Sounds like mouse heaven to me. Eat
the bait in the live trap, get a trip outside, rinse and repeat.

Fish & Game plays the same game culvert trapping problem bears, At least
they tranq the bear so he wakes up with a hangover and splitting headache
that slows him down on the return to his favorite bird feeder.