If you look closely on his back you can see brown, not only black so he wouldn't just be a black mottled. Is there another name for a mottled bird on a non-black base besides mille fluer?
I think genetically it'd be considered a "high white mille fluer" or a heavy mottle mille fluer, I see some brown in there so it's not black mottle, paint, and it's not a splash! He's gorgeous : D