 So at this point, you must be losing a lot to predators and birds of prey. Nothing really. We don't get any trouble with foxes because the perimeter of the farm has a fox-proof fence. The hens can be out the whole time and they don't have to worry about anything going to get them. What about kestrels or pussets? We don't really have much of a problem with birds of prey. Ravens can be worse than the birds of prey. Every so often we probably get a few birds. With the hens out all the time, there's not much you can do about it.