I have a chicken that has a weak leg or legs. She will be 3 months old soon. It is hard to tell if it is both or if it is because the one gives out on her. I could not feel anything broken. What does it look like if they stretched a tendon or ligament at the knee. That is where it seems to give out on her. She is getting around but she definitely walks funny and I can see it give out on her at times. If this could be what it is, what is the treatment and should a brace be put on her or him?