My chickens are free ranged chickens. They run around the yard all day long until night and then i lock them up in the coop. For the past 4 days the hawks have been coming around and end up scaring my poor babies, they end up hiding in the brush on the stone wall but im worried that the hawks might end up succeding in killing some of my chickens and thats not all. my dad has a small dog and im also worried for him as well. what can i do to keep the hawks away?