Yesterday I was letting my chickens walk around my back yard. My husband had some wood boards leaned against the side of our house and one of the boards somehow fell and hit one my barred Rock hen. She is acting fine and eating and drinking like normal and has been trying to use her knees to "walk" or move around but she won't actually stand or put pressure on her feet. Is there anything I can do to help her? She is a great chicken and I would hate to put her down if there are any other options for her.