The culprit of this night's attack was an owl - and it killed a turkey! The turkeys (now over ten pounds each) were in a separate enclosure from the chickens. There was a narrow gap in the covering over the top. We were so tired from rebuilding the chicken enclosure that we decided to leave it. Half hour ago the dogs went off and I shot out the door. There was this owl and my smallest turkey dead. But the owl couldn't figure out how to leave. It managed to find the entrance but couldn't find it to get away. I put the remaining three in the chicken day run and peeled back the covering of the turkey enclosure enough so that the owl could get out. I'm convinced that the first attack with the beheaded chicken was a fisher cat but the last two attacks were definitely this owl. It seems to break the necks of the birds and leaves a huge bloody bare spot. Explains why we haven't caught anything in the Havaharts. Also explains why I haven't seen any rodents lately.