I went out to the coop this morning to let my chickens out for the day. I was in the run getting their water and food set up, and noticed these very creepy claw marks or something. I have no idea what they can be, but after investigation, I've found no other track marks or anything in the run, or out in the surrounding yard. None of the fencing appears bent or disturbed, and I have no idea what could have possibly gotten in out of nowhere, left these claw marks, and just disappeared!! My run is completely covered, and the largest gaps would be from some small areas where I used 2x4 welded fencing. Here are some pics of the marks. They are about 5-6 inches long. Like I said, no tracks or anything, just these weird claw marks. Any ideas? I've had no predator issues so far, but now apparently something has discovered my coop!!