I'm having problems with two hawks. Ever since my hen Alice was attacked by a hawk, the hawks have kept coming back. Lately, when I go outside, the hawks will be circling the hens. One time, I even caught one of the hawks chasing the chickens. I have fired warning shots, but they don't stop. They will not go after the chickens when I am standing out there. The two chickens are free range. I don't want to have to keep them inside, because they don't have a run. Is there anything else that I can do? I really don't want to have to shoot the hawks. There are a few crows that will drive the hawks away, but they are only here inconsistently. What else can I do?