I have 12 red stars, 2 white leghorns, 4 red brown americanas, And two black Americanas. The Reds and leghorns are 11 weeks old and the Americanas are 8 weeks old. Everyone is fine except one red star. She started limping Then I noticed her feathers were a mess and seemed like chunks missing from some of her feathers. her wings droop most of the time and she sits on her bum with her feet extended in front of her at times other times she lays on her side and scratches the ground with her foot causing her to go in circles on her side. She spends a lot of her time in the coop by herself. I have inspected her thoroughly and cannot see anything wrong with her. Yesterday I started her on B complex. She seems to be getting around a little bit better And she no longer has diarrhea. She is eating and drinking very well. Does this sound like a vitamin B deficiency or something else please help with some answers thank you.