If you shoot at the hawks using the (can't remember the name of these darn things at the moment) gel type pellets they go away. They don't kill them, or even break the skin. But they do sting. They are biodegradable even and the ones I have are nontoxic so if a chicken eats it they aren't dangerous. I use them on hawks, cats and dogs. I've also got a misbehaving husband a few times as well.
Though he just laughed at me.
