One of my 5-month old Americana hens has been acting strange. She is free-range and for almost two weeks I would find her laying on her side and would have to pick her up to get her going, then I found her on her back for several days in a row, thought for sure she was a goner but now she seems ok. I was thinking perhaps she had a head injury from one of our Llamas or goats but now another hen has started acting the same way. Just like the first one, when I pick her up, one side seems paralyzed for a minute until she gets going, then she seems fine and eats and drinks. Any thoughts? I wanted to add, I brought these two hens home 3 months ago when they were 8 weeks old and my other3 hens (Buff Orpingtons) have never accepted them, they pick on them even though they all free rage.