Last night something was trying to chew it's way into my hen house, unfortunately it was to dark to deal with it, I just heard it. This morning when I went out all the girls were there but one was holding her foot up. She was trying to walk on a "fist" and was putting the wing on the same side out for balance. She was fine the night before and there is no sign of other injury. Any ideas?

! Great to have you in our community! Hope you get the advice you need to help out your hen. Best wishes and thanks for joining BYC!
Definitely follow up on the link RodNTN gave you, and wishing you the best of luck with her!