My Buff Orpington got attacked by red tail hawk

My 6 hens have half the back yard and the dogs have the other half. There is always hawks flying above there part of the yard but haven't come close until lately. It's been really cold and the girls are easy pray so I think the poor hawks are just hungry....I love birds of prey but not attacking the chickens. Today from the window we heard something his the house and saw the hawk fly away from the ground. We didn't know Lillian the BO got injured until later because she and a couple of other hens were under the house. When I went down there she did come out and saw that she was injured...she was what hit the house I'm sure. She is missing a lot of feathers and has at least 4 gouges one the size of a quarter and 1/4" deep. Is there anything I just do to make sure she is okay? I just put them to bed in the coop and she was fine and nobody was picking on here. Any advice would be greatly appreciated. She is one lucky lady.