A couple of years ago I had a problem with a predator sneaking in and ripping the heads off of my sitting hens. Of course it always happened after midnight and before dawn when I was sleeping. I set out a trap for it with no luck.With the help of my dogs I finally caught it in the act. A possum. I couldn’t shoot it with a gun because each line of sight involved a neighbors house to some degree. So I futilely attempted to shoot it with a crossbow, then tried to smack it with the deck broom, before finally hosing it down with the water hose out of sheer desperation. The water stream was fairly powerful pressure wise and it was quite chilly that night but I doubt I really did anything but scare it. Either way the possum never came back after months of treating my chicken yard like a drive-thru. I bought a baseball bat in case something comes in, in the future that doesn’t heed the water hose warning. Like all chicken owners I am sure, predators are responsible for the most devastating experiences I have had with my flock and I try to have a plan for anything I encounter. This spring I had a hawk swoop in mid afternoon and rip the head off of one of my hens. I saw it through my kitchen window. I had to put up decoy owls after that. It seems to have worked. Good luck.