Bout a week ago i got 6 chicks from TSC 3 pullets and 3 bantams.the 3 pullets were all yellow and puffy and bantams all looked differently (Nugget, red and dudley) . Recently on has started to get a red tint on her head (peaches) now they're getting feathers and they're all getting white wings and tails. Will they change color? Is there any way to tell them apart (marking them etc