Alot of times it's hard for me to relate to other members on here. I live in a very remote part of Tennessee. I have black bear, coyote, coon, possum, hawk, owl, stray dogs. I haven't had the problems that even subdivision people have. My coop is open 24/7 and I free range the chickens in the woods? They don't have a run. Everyone's first time back to my place thinks I bought the film location of Deliverance. It really is a great place to find rattlesnakes, chiggers, and moonshine.
So it's hard for me living where I do, to imagine the problems yall got with predators. I have an Anatolian shepherd running loose, scare crow near the coop, and 12 Gauge if needed.
I would start with eagle decoys, scarecrows, or even invite a professional falconer to catch the hawk population.. your local wildlife officer would know how to get in touch with them.
In the long run, chickens are cheap