Well, i've got Frizzgig in with the newborns.. she's *kind of* looking better... there's a line of feathers coming in down the middle of her back and neck, and there's some more wing feathers coming in. Other than that, she's mostly bald
she is probabally just a late developer. sometimes chicks lose their fluff faster than they grow feathers (depends alot on the breed and parents) that sounds like what it is. if she seems healthy and is eating and drinking fine then there is nothing to worry about. just give it time.