So we found one of our young chicks caught in a piece of shade cloth that had fallen after some big winds. Her foot was caught and I am not sure how long she was there. Needless to say, he foot is black and cold. We tried very gentle massage and kept her in the house. It has been 3 days and even though she uses it for support , she doesn't seem to have any movement in it. If her foot is dead. How would we know, what should we do. AND what can we expect?