Does anyone have any suggestions to keeping predators away? I have lost 7 hens in this week alone. The barn is tinned, and we cannot figure out where they are getting it. Its opposums and racoons that are the main problem. We played the radio in the barn and it kept them away for a while, untill they figured out it wasnt real people in there. My dogs are worthless and are too scared of the racoons and possums to do anything about them. It would be nice to get a real guard dog for my flock but I have too many dogs as is.