Fox you can always trap or shoot. Hawks....usually illegal to shoot at least where I'm at. You could try putting some Owl decoys out or some pie tins tied on a pole. They don't like the noise or the shine they give off. A dog works the best. Mine is out when ever the flock is free ranging. Don't know if the previous techniques actually work but I have both. I feel that it's some sort of safety attempt at least.