I'm nursing/culling a hen who seems to be paralyzed in one leg. It's been a few days. Have her in the house. She poops. She eats and drinks and seems to be the picture of health except for bein lame. She likes to lay in my lap. A few minutes ago she shook her head and opened her beak wide as if to crow. Did it 3 or 4 times and that's it. Any of this sound familiar?