I once found a Great Horned Owl youngster standing by the side of a road. He had tried to snack on some road kill and got hit. He was concussed, and more seriously, had a lot of bleeding into his left eye. I took him to work with me (at that time I was at the animal emergency clinic), and we treated him for his shock and x-rayed for any skull fractures (none found). It was several days before we could get him to WildCare (the rehabbers) and before that he needed to go to the vet opthamology specialist. He drained some blood and removed a small clot from his eye. He was very laid back and "tame" when being handled. Due to the eye injury, he could not be released into the wild again. Now he is a "spokes-owl" for the re-habbers and goes to schools and public outings!