About a week ago my white leghorn stopped laying. I figured she was laying her egg some where in the yard like she has in the past. Today I let the girls out and noticed that her backside was covered in poo and she wasn't on her normal routine. I got a call from my girlfriend telling me she is laying in the yard and isn't really moving. She is alert and seems to eat whatever I put in front of her. I put her back in the hen house and she was standing when I put her down but took two steps and fell over and couldn't get back up.