A few days ago we noticed that one of our 10 week old pullets was walking on her elbows. When we picked her up we also noticed that her toes seem to curl. She seems to want to keep her left leg more straight out and won't/can't really stand up. She is a bit thin too. Up until now she has been fine from what we can tell. We check on them multiple times per day and she would always be with the other 10 that are about her age and 15 that are about a month older. I've researched online and found a few possibilities, but am not sure what is wrong. Many of the things mentioned seem to happen to very young chicks and she didn't have any problems before. If anyone has any advice, please let me know. I'll answer any questions that might be helpful in figuring this out. I can take pictures if that would help.