I"m not a big cat person but I do like to have them in the barn. When my daughter was married in October, she took the cats with her to live in the barn where she is now. I waited a few weeks to see if any strays showed up and when they didn't, I found out that one of the Animal Shelters close by will allow people to adopt cats but they would also give away "mousers" to people with barns for free. These were the cats ranging from didn't like to be handled to almost wild. I called and they came out and set up cages in the barn, told us to feed them for a couple of weeks and then let them out. Seems to be working well and I think it is a good program. Much better than the alternative.