if they survive and breed in so cal garage, they should be ok in my garage. i think i'll invest in a colony. i have a lot of 20 gal fish tanks laying around. that would be even easier vs the lanai/porch. how may pups per cycle and how often are the cycles? when i had mice i got 8 to 10 every month from one female. then she ate the male's head ...my gf flipped out and said, "no more mice".