I only let my chickens out in the afternoons when I am around. Today luckily my wife was out on the porch when I heard her yelling. A fox had one of my RIR's in its mouth. Fortunately when she yelled it dropped her. I chased the fox off and she was not in too bad of shape just two puncture wounds on her back. I gave her a spray of blue kote and she is acting normal. I had to go to work tonight but my wife called and said the fox was circling the coop before dark. My entire run is hardware cloth and I have a welded wire apron around the bottom. I had her stand a piece of 3/4 inch plywood over the pop door and she stacked some pavers in front of it just in case it could find a way inside the run. Crazy part is my neighbor bought 14 chickens two years ago and still has 13 of them now. He just has a hole in the barn for them to come and go they have access 24 hours a day. He lost one to a neighbors dog and that's it. I'm going to leave them locked in the run for a while. I am assuming the fox is living somewhere near by. Hopefully I can get rid of it. Not sure what I will do if it doesn't end up shot or trapped soon.