I was just visiting family and one of there new birds just got injured. They are at a stand still because it's their favorite sweetest hen (soon to lay). We examined her and notice sever bruising by the hock. It was green color. She can not put pressure on the leg and just uses her one leg. The bad leg is completely limp. We checked for dislocation, there was a little snap, but her leg still showed no movement. Also her toes showed no movement. I didn't feel anything broken, there was no swelling and the leg look normal (except for it being limp). This bird has been flying around to roost with one leg. What could have caused this? could a roo cause this to happen?? there roo seems to prefer that one hen way more than the others, even tho shes not laying. Question is would this likely resolve? whats the likely hood if not of a chicken getting by on one leg? she hasn't even began to lay and its their favorite bird. My suggestions to them were to cull her but they don't want to. and only have 4 hens and a roo.