I'm a little new to chickens, I've only have my flock since Oct. 2012. I have 4 Sexlinks, 3 of which are 5 months old, the other is about 9 or 10 months old. Well, I just noticed yesterday that one the 5-mo-olds is walking with a bit of a limp. I inspected her leg and don't see anything unusual... scales all look normal, toes don't look broken or crooked, no open wounds on the foot or leg. Can chickens get a sprained ankle (or something similar)? Is this cause for concern, or will it heal itself? Her behavior seems usual, eating habits haven't changed; she just acts like her leg hurts and avoids putting weight on it whenever possible.