A racoon got in our run three days ago. Killed one chicken and injured another. Luckily I was just going out to put the "girls" to bed and scared him away before he did any more damage. The injured chick is a Black Australorp. She was stunned....probably in shock when I found her. She had/has no wounds that I can find but hardly uses her right leg. She seems to be getting to her food and water but does little else that requires her to move. She seems alert. Any idea what could be wrong with her? I have examined her leg and can see no injury like a break. Certainly no open wounds. Any advice would be much appreciated.