I let my chickens out to roam this morning as I often do and went inside to make coffee. I heard an odd sound, and they were all by the fence line, 3 of them trying to hide in a brush pile. I did a head count and the silkie was missing. She was about 30ft away in the middle of the yard lying limp. I have her inside now, and she can stand, but falls if she tries to walk and goes through periods of heavy breathing. I can find no obvious signs of injury, but I think she was attacked and saved by the amount of fluff. She is able to remain seated and keep her head up. What can I do to help her.