I think they already have created these. I know there are people who raise those aggressive fighting cocks. (Still don't understand the whole concept???) Anyway, I bet those mean suckers would try to take down a hawk. Of course trying to own an aggressive bird raises a whole new set of problems. Nothing like getting a daily flogging with your morning eggs! LOL
That's why people keep turkeys, guineas, & geese with their chickens. Great hawk deterrents! (Just not an option for those of us living in neighborhoods.)
ChicagoClucker- I'm glad your little broody & chicks are OK. She must really be something to make that hawk think twice. Before we had the giant orp roos, I caught my fearless, little EE hen (Tyrion) & my EE roo literally chase away hawk. The hawk was making a low fly-by & those two were chasing, flapping, & screaming at it from the ground. The orp roos are great spotters & make the hawk warning noise while theh hens all take cover. The boys are great about making sure all the girls are inside & then on guards the entrance.