I am a first time chicken owner. I dont have much experience with them. I have 4 hens. I cam home and let them out of their coop to roam around my yard. (as usual) and i noticed that one of my hens was hopping on one leg. I picked her up to evaluate her leg but there seems to be no external injuries. I have no idea how to tell if she has a broken leg or foot. can anybody help me? I would greatly appreciate if i could get some answers. thanks.