I have a light Brahma, Hope, whose feathers look kind of like ur baby. She is about 6 weeks old and is the runt and her feathers just aren't coming in like the other girlies did. She lived upstairs with us for a few days cuz I was worried she wasn't eating and drinking enough. We put her back in with her friends and she has been doing ok...but feathers r still "mussed up" and look kinda weird. I would keep doing what u r doing and just keep a watchful eye! Good luck!
