Three of our seven chickens were killed last week by a predator, probably a raccoon. I know we have them around here. I've patched the one narrow opening that seemed a likely entry point, but I'm still too anxious to sleep when the girls are not in their house as I'm not totally confident the run is safe and I'd prefer to be able to not lock them in every night. I'm wondering about testing out the security of their run by leaving them locked safely in their house for a few nights and putting out bait in their run....like a can of tuna fish. Is this advisable? or am I courting further danger. thanks so much for your help.