Chick only standing on one leg, has trouble walking.

[Platy04]

Thank you for the information. I really thought it was a slipped tendon but when I try to feel around her hock nothing moves back and forth. Her bad leg's hock does look different from the other one but it doesn't seem swollen. Also she has trouble bending her leg, not straightening it. I'm thinking it may be just a slightly rotated femur?
Thank you for the advice of putting her in a sling, she seems much more comfortable in it and has been able to eat and drink a lot more.