I fI may add a comment here, I used to have frizzles from hatcheries before and some are very tiny but most of the time the hahtcheries are mating frizzle to frizzle as they try to get the most frizzles out of the experience, so you will end up with badly frizzled birds such as those all look to me, the feathers themselves are thin, and sparse looking and fragile. A professionally bred frizzle bird has much different appearance to the feathers than the hatchery ones. I think this can also be the cause of the stunted growth if you will of the birds themselves, a genetic misfit. Mine were like the first red one, the feathers seem so scant compared to my friends birds who were breeder quality., yeah tey covered her body but barely. She was always extremely warm year roound.