So sad Our run was what I thought was completely predator proof. Hardware cloth and chicken wire doubled on the bottom 2 feet of the run, just hardware cloth for 1 foot above the double layer, then the rest of the sides and top is chicken wire. The bottom is completely covered in hardware cloth and buried deep into the ground. We've had our run since August of last year and have never had an issue. This morning I went out to give my girls breakfast and found one of my sweet Delawares without a head. There are no signs of predator entry. A few people have suggested something got her from the outside, perhaps she had her head poking out and they got her that way. I'm so saddened. I'll be spending the afternoon putting a layer of very tight (1 cm square holes) hardware cloth around the run. I can't let this happen again. Anyone else experience something similar? Did you find out what had done the damage?