azjustin
Chirping
Keeping them in a covered and kind of defeats the whole purpose of having them. I'm looking for ideas checking them while they are out free ranging. Thank you to those of you who gave the suggestions.
Sometimes that's the only way you can keep them without feeding the local wildlife. If we didn't build aviarys, there would be fat hawks and no chickens. Besides, beyond their covered area is the exact same dirt and scrub brush as is covered by 500 square miles in all directions. Free ranging does nothing here other than make people feel good.
Digressing: lots of people will give their chickens lots of places to hide which helps. Bird netting and such also will keep the hawks out but can be expensive. You didn't give your location or any type of hawks you're dealing with, that would help.
Good luck.