Two days ago when I let my girls out to run around the yard I noticed one of my cuckoo marens was kind of scooting about. She did not stand up fully but kind of scooted about on her lower legs. I immediately picked her up and checked her out. Her legs looked and felt fine and so did the rest of her. Her comb and wattles are bright red and she chirps and squawks like normal. We isolated her and put vitamins and electrolytes in her water. Yesterday her poo was bright green. Today her poo looks normal (firm and brownish). She is still laying eggs and does not seemed stressed at all. I took her out of her pen today and set her on the grass and she is still scooting about. She is not standing fully. Her wings are strong and her coloring is still good. Not sure what is happening with her. None of the other chickens are showing any of the same signs. Any help or suggestions would be greatly appreciated.