I don't believe it has anything to do with splash.
I don't believe its a matter of gene play at all.
I've had birds of different varieties start getting unexplained white feathers. Usually not near that dramatic but I've had one turn completely white. I've got a barred hen now that has progressed to about half white after her first real molt.
Idk what causes it but to me it just seems like there's something there that's turning the color off but idk why.
Can I phone a friend on this one?
Ring ring ring.
@MysteryChicken