We have dogs, horses, quail, & chickens, and now apparently, we have 100s of mice in the outdoor feed area. I've been setting traps for them, but many of the mice are too tiny to set the traps off. They just keep stripping the bait. So, should we get a barn cat? If so, here's the deal: 2 in the family are allergic. This cat would need to live in the barn and outdoors (we're in NC, so not too cold). Would a barn cat require any attention or work? We're at our limit of farm chores right now, and I don't want to incur any expense beyond some cat food. Would putting cat food in the barn draw in other wild animals? Could it live off of just mice & moles? We have lots of acreage full of both. Thanks!