I am relatively new to raising chickens. I have lost two chickens over the last week to a predator that seems to bite the necks or something and then eat the heads. I haven't put wire tops on my runs yet and they are open on top. I found the first hen in the middle of the run with just it's head eaten - totally gone. I then noticed my wheaten roo was missing feather on the back of his neck where something tried to get him. I assume the rooster tried to protect the hens. The rooster was the first sign of something going after the neck. Today something got a cream lebgar and the neck was stripped to the bone and head eaten almost completely. In both cases it was broad daylight and other chickens were in the runs with each of the victims. The runs are old chain link dog pens. I attached 1" chicken wire to the inside and it (an the chain link) come to the ground and then about a foot on the ground inside the runs. I even fixed chicker wire around the doors so there are no places for predators gain access. I checked and it doesn't appear anything came through or under the fence. I know I need to cover the top with chicken wire but the wire is so dam expensive and I need 4 rolls of 6' chicken wire that are 50' long just to make the tops. Anyone have any idea what type of predator I might be dealing with? I do have hawks and owls but didn't think they could eat the head or strip the neck like that. I live on a few acres in Henrico, VA and it is near a river - so there are fox, opossum and lord know what out there. Thanks for your help!