Sorry to say I too just came in after coming home to a big hawk eating my favorite. She was my biggest and best layer as well as sweetest personality (can you tell we bonded?). Needless to say just like so many others in this thread, she will be missed. My 4 others were so devastated they all let me pick them up and put them in the coop while I attempted to sho away the hawk who wasn't giving up her meal. I finally got her to fly away after I called my dogs, I think it was the loud yelling. I too have a large deer fenced yard around our coop and we let them out to free range it in the late afternoon. I think my only option is the aviary fencing. I love raptors and don't want to kill them, just protect my gals. We have a large area and it gets rather windy. If anyone has tried this by now, I'd be interested to know how it's going?
BTW: I am sure my gals are upset, one of them is making a low repetitive moan sound, she won't stop. The others are very quiet. Do chickens mourn? I think so...