This is going to sound mean but, I have wrote this same post so many times I think I will just copy and paste it to a file. If you free range accept the fact that you are putting your flock out into the food chain. I personally have lost 2 flocks due to predators and I choose not to go through that bloody massacre again! My advice to you is if your not already hatching your own chicks then invest in an incubator because you will need to keep producing lots of chickens to keep up with the supply and demand of feeding predators. I choose not to feed the predators so my girls are completely confined. We paid a lot of attention to predator proofing when we built this coop and run. I have a coopers hawk that visited a couple times and I have not seen him lately because he couldn't find a way to get into my run and coop. It is a simple solution don't free range! You could get a protective roo but it is only a matter of time before you will be replacing him as well. I see this post or one just like every time I come to this site. My girls do get out of the run when I am standing right there with them. My run is completely enclosed in hardware cloth that is buried 6" into the ground for digging predators. Your hawk will return, mine did a number of times and each time it went away with no meal! So stop letting your girls free range is best thing you can do. If not I am sorry losses.Ok, I do have a covered run to keep them in I just prefer not to. And yes I checked for puncture wounds, nothing. And I know a little bit but not a ton