Mutation on wild peacock in Sri Lanka.

[Dany12]

"White peafowl mutation results from hybridization with Green Peafowl, so does the Black-Shouldered." What a funny idea!
Here a white green peahen with a white feather at the top of the wing !
It's not a split white .... shame !

 

[zazouse]

Yunnan researchers are probably aware of it but it hasn't been described formally.

White peafowl mutation results from hybridization with Green Peafowl, so does the Black-Shouldered.

Would you also say that domestication of peafowl also causes white on birds , like foxes at the fox farms start getting white on them within a decade or two of domestication and now they come in all different colors, even their temperaments are changed with selective breeding.
There was a time when it was thought that it took 100's even thousands of years to change a species and now they are finding that in many cases it is only a decade or decades