I have as many hawks as anyone but keep losses to very low. Dogs are my big guns but a combination of cover and roosters seems to be key. Cover must be easily accessed even by a panicking chicken and deny hawk the ability to fly if is decided to enter. Rooster must be full adult and standard sized so that when he does launch his attack hawk will be at a disadvantage. My roosters work only from cover and from there are very effective. Setup above has cover but it is not deep enough and birds are likely to corner themselves in netting making hawks job even easier. Best option for me is not all that pretty. Put a game rooster in there and look what plant species occur locally can be adapted to forming a dense patch. For me best are brambles and wild roses.I elevate pallets on concrete blocks all through the run to give them places to hide from the hawks. I have other hawk shelters too that I built for them. Mine wouldn't live through the day if they couldn't hide. I also have heavy knotted netting over my bantam pen but you have to think snow load when hanging that...might not be practical if you get a huge amt. of snow.I still do have hawk losses though- and owl losses- even despite these measures. For anyone who doesn't know, it is illegal to harass or kill birds of prey like that. So the only thing you can do is give your chickens shelter.