Limping chicken after week in small area

[Koakley]

My chicken is limping and has been in a small area for the past week with no improvement. I think she still has two much space to move around tho. Is one large dog crate to small for her to be in?

 

[Malkaris]

Why is she limping though?

 

[Koakley]

That is what I have been trying to figure out. She has no bumps or scratches so I thought it was just a sprain and kept her contained for a little bit but she has not improved