Black x White orpington cross, question Leg/Beak/eye colour

[JinHayabusa]

i want to cross my white orpingtons with black(largest orpington colour) for get better size. Do leg, beak and eye colors turn black? i only know plumage colour genetic, others is hard. İ'm breeding my birds for show.

 

[NatJ]

I don't know for sure, but it looks like no-one else does either

My best guess is that the black leg/beak/eye is a side effect of the genes that cause black feathers, so when you have bred them to have white feathers the other parts will probably be the right color too.

I would be curious to see updates after you try it, to see what actually happens (as compared with what I am guessing will happen.)