I had two chicks hatch today that seem to have their legs splay (for lack of a better word) out to the side. They can move their legs and all but seem to have no strength in them to stand. When they lay down the legs are out to the side instead of under them. Any ideas what is going on? Is this a normal birth defect? Will it get better? I had 35 in all hatch and these are the only two that seem to have this problem.