male split sexe linked color .

[scootj79]

It can also occur because a mutation occured in the earlier birds that was not being shown. Only showed up later. Leggs, the location of the first Taupe birds, mentions it does not appear to be sex linked. So the purple aspect could be just a fluke or may have helped in the influence to an extent.

 

[Dany12]

They say :
It's a combination of two color ... Purple and Opal !
The fact that Leggs hatched two males is pure luck.◄ ... a miracle ... yes! ALLELUIA !!!

 

[KsKingBee]

It can also occur because a mutation occured in the earlier birds that was not being shown. Only showed up later. Leggs, the location of the first Taupe birds, mentions it does not appear to be sex linked. So the purple aspect could be just a fluke or may have helped in the influence to an extent.

The hen could not pass on Purple although she could pass on Opal and her sex gene is going to tell the chick 'be what your father is'. So I expect it was the Opal from the hen and the split to Purple of the cock. It could have also been 'crossover'.

 

[Dany12]

Two birds on the same time .... very strange !