My chicken (who walked of her own accord into the coop last night) is having difficulty walking this morning. I found her on the ground, not on the roosting bar, in the coop, unable to move. It seems she is unable to bear weight well on her right foot. At first it looked like she could not extend her toes, because she was standing with her toes on her right foot curled under, but during to course of my examination she was extending them on her own. I examined her and I can't find any obvious injury to her feet, legs or wings. she is able to pull back when I extend them and I don't feel any swelling or anything wrong. I wondered if it could be her spine since she is holding her tail down but when I lifted her tail, she did hold it up on her own. She can take a step or 2 but she won't unless she has to and she appears to struggle to stay on her feet, falling towards the right. She is looking worse as the day goes on, really not standing at all. Any suggestions or treatments out there?