If that Purple male is split BS, is it possible that the chick could be split BS as well or not? I would have thought it was possible, but I'm no expert.
If he were split BS the chick could be split BS but neither of those birds are BS or split BS. The black coloration at the outer part of the wing is normal. It would have to extend to the shoulders like the pictures New 2 Pfowl posted to be split BS.