Hi, One of my hens (barred rock) apparently spent the night out of the coop last night. She was tucked away in the back corner of the run under the coop where I couldn't see her. She seems to have trouble walking, and one of her feet stays balled up. I suppose it could be from the cold, but she has been sitting snugly in the dirt, and I imagine that the foot was why she didn't go back in the coop. I've got her inside now in a box to keep her under watch, but I'm not sure what to look for, or how to treat this. Any ideas? It didn't look like there were sores on her foot, but I can check again.