Which Muhabbet kuşu breeds come in Siyah yüzlü?

Club breed standards describe Siyah yüzlü for the Muhabbet Kuşu.

Muhabbet kuşu pattern

Siyah yüzlü

Budgerigar mutation: black wavy markings across the body and a black face, the mask's markings fusing into the throat spots (WBO Blackface).

2 Muhabbet kuşu breeds list Siyah yüzlü. It is in a club standard for 2 breeds.

Breed	WBO
Muhabbet Kuşu	Standart (“Blackface”)
Muhabbet KuşuSiyah Yüzlü	Standart (“Blackface”)