I have a RIR who, a few days ago, was a beautiful bird - just over a year old. Now, her feathers are coming out, especially down the neck and around the sides in the back and around her rear. She also is walking funny - sideways and looks like she can't keep her balance. Eyes and nose are normal - no discharge, and breathing is normal. Anyone have any ideas? My other girls all look fine. Help - she really looks pathetic.