Last night, chickens were out foreging before sunset, and I heard strange calls. Ran to investigate and found a Cooper's Hawk on the ground with its wings fanned hiding one of my buff orpington girls. I chased it away, and picked up the chicken. She had some blood on the side of her head where some of the red comb/wattle was pulled away from the body. Not much blood. I cleaned it off and put triple antibiotic ointment on it. She appears fine. What else should I do? Hen is eating and drinking.