Glad your hen survived. And yes, not far from here there have been reports of cougars, bears, and the other day someone found some wolf tracks in the snow. The spot where we are isn't really known for either of those three but it's always possible. Our run is actually setup with the egg layers on the inside and then there is another long run that runs all the way around those inner two. I have some heavier gauge wire on the outside run but haven't fenced it all the way to the top yet. I also need to add hardware cloth to the outside run to keep weasels out of that part. We currently don't have any chickens in that run but the plan is this will be for the meat chickens next year. I'll make sure that is beefed up before any chickens are introduced next year. But for now, it essentially creates a "moat" around where the egg layers are.
Injured hen update; took our girl to the vet yesterday afternoon. They gave us some liquid Meloxadin to give her once a day. I gave her the first dose yesterday when we got home and within a couple of hours she was much more alert, able to drink and eat on her own without us assisting her at all, and she was moving her head and neck around better. She still has balance issues and can't walk but she can stand and support her body weight without issue. We will see if she can get to a point of walking again over the next few days.