I've often wondered why I've never had a hawk problem. I thought it might be the turkey's size keeping them away from the chickens, but after the coyotes and bobcats took out most of my adult birds, I still didn't have problems with hawks. We have them everywhere and they go after the doves all the time. Then, one day I saw one sitting in a dead tree a ways away. Between the hawk and the chicken run is a wind turbine. It's maybe15- 20 feet from the end of the run. Light bulb moment! I wonder if there's a way you could fix something on a tall pole that would act like the turbine? Who was it that tried flags? Did those work long term? Maybe some shiny whirligig thing on a pole.
Yah...I'm the one that did the flags for awhile. Like anything else, I think you have to move things around as hawks are great "studiers" and are easily able to figure out if something is a threat or not.
I also like the idea of having the predators around like SH said if they are doing their job without harassing livestock. Of course, with some predators, humans are THEIR only predator and when humans aren't doing their job to keep the populations in check things can get out of balance with pred overload which isn't good for those animals either when food becomes scarce in a territory. It seems we no longer have a scarcity of many of the raptors like we did in prior years....