The other morning my husband went out before work to feed our chickens and water them before we left, he comes back in says we have a problem something got 10 of our chickens last night this critter dug in one way and put the next....mind you the coop we were using was one that has been on our property for a long time and probably has been out of commission for a few years at least the two we have been here we know of, any who I hate the thought of starting over but I also want to think I can fix this coop to where it needs to be.....any thoughts this coop has tin walls dirt floor I had read somewhere that maybe concreting the floor may keep predators out which would not be hard again any thoughts or tips would be greatly appreciated because the 12 chickies I have left probably are hating the fact that I let out in a dog pen during the day and in close them at night in my mud room in extra large pet carriers but I couldn't just let them go down without a fight I guess my biggest fear is whatever the critter is I'm suspecting a fox will come back