Even though a chicken's understanding re aerial predator threats is often innate, sometimes their understanding only comes after an attack. Your flock is hopefully a LITTLE wiser now. Maybe. Unfortunately it sometimes takes a sucessful kill before the flock truly understands the danger. And of course that means a tragic loss. Do you have a dog you trust to be with the chickens? A large redtail hawk has included my chicken pastures & surrounding woods as part of its territory for years. It HAS sucessfully gotten several hens. However, the hawk has only attacked the flock that ranges in a 2 acre fenced pasture that my dogs dont usually enter. That flock has several roosters that DO alarm call the danger, and then the roos run back to the coop with the hens. Sometimes a hen didnt make it back safely despite the warning. The hawk has never attacked a chicken within the acreage where my dogs regularly sleep and patrol. Even though i often hear and sometimes see the hawk flying near that flock, it obviously sees my dogs flopped out on the ground snoozing. Neither the resident hawk nor any other has ever dared risk an attack. So even if you have a dog that mostly lives inside, & even if u can only trust the dog under your direct supervision, i believe a dog's presence would deter a hawk from attacking your flock. Meaning you could relax & enjoy time with your flock instead of serving as the flock "rooster," constantly on alert and scanning the sky. Of course the dog has to be big enough to not be appetizing hawk bait itself. Shitzous & pomeranians dont count!