I have a buff orpington who has been sittin in a box an gets really aggresive when you try to move her, just have hens no rooster, tryed to get her out of box to clean it an she wouldnt stand just kinda rolled as I gently moved her she got in the next box. How long do they broody or is she sick? Woke up this morning to find one of our young americanas dead not sure what happened. Now Im concerned that she may be sick??? Still pretty new to chickens Thanks for any help!