do you have a source on this? i'd be so happy if i could actually shiny hunt darkrai shaymin and now arceus and actually get them into my gen 7 games.
Can't seem to find one at this very moment, but I'll keep you posted. Go hunt RBY Shiny birds in the mean time perhaps
if you can't find it i can just train my tweaked non shiny shaymin to level 50 and see if it transfers