Our little Danish Brown Leghorn seems to have some kind of injury to one leg. She can walk and run, but kind of lists to one side, and eventually falls over, then just sits on the ground leaning a bit. Seems as if one leg doesn't bend quite right. The other girls (all much bigger heavies, same age) started chasing her, so we took her out of the run and put her in a cardboard box to see if she will recuperate. I'm guessing she somehow pulled a ligament, maybe in the knee joint, or strained something in a thigh. What are the chances of recovery? What could we do to improve them? I don't like having her closed up in the box, so might fence off a corner of the run for her so she can at least be outside in the fresh air and sunshine.