Just getting around to posting because I've got a newborn... One of my hens hasn't been walking all week. She's like off balanced, one of her wings sticks out sometimes when she falls over. She's eating and drinking... I noticed the other hens were picking on her today so I crated her and put out food/water with some Nutridrench. She's a bit over a year BCM. None of my other hens show signs of illness. I don't get what could be wrong?? I broke an egg and she gobbled that up. Help! I think she's going to succumb to whatever it is, she is feeling thin 
