Just before Christmas we noticed that one hen was limping. We have separated her into a coop with copious shavings and given her baths in epsom salts (which she enjoys). At first we thought it was bumble foot (there was a small sore) but it has since healed. She appears to be limping more today (it did cool off overnight, so maybe she is just stiff). Her toes are flacid and don't grip on that foot, but they are straight. There appears to be no swelling or broken bones. Otherwise, she seems happy. She has visits from the rest of the flock, eats, drinks, and lays eggs. Any suggestions??