It's a mystery where these Whites are coming from. I am getting them from a pair of Tiger Grizzles and a pair of "Pencil" Grizzles. Both pairs are related but have pedigrees that go way back and there is no mention of Whites on any of the Fehrholz birds' pedigrees. There's also no chance of cross breeding going on. One suspicion is it's related to the "Pencil" factor in these birds that causes the Bull Eyes and White coloration. Another possibility is Recessive White is way back in their ancestry further than the pedigrees list. So far I have only bred five of these but I am trying to foster out all the eggs these pairs lay to try and get more and build up a big family and fly them out.