gouldian (no black around face)

[Shark]

I saw a couple of male red headed gouldians the other day that looked perfectly normal except the black around the face/head was missing altogether.
The red just went straight to the blue color, the bird was not plucked and was in good feather.
does anyone know if this is a known mutation?

[AMCA26]

I am helping a guy up at dads and I have got his Yellow heads to point in the cocks of just having a thin black line on the back of the head and with the hens a couple you would think are cock birds with the amount of Yellow on the head. So I would say its not a mutation I would just be breeding for that look.

[finchbreeder]

They could be single factor Euro yellows? Or as AMCA says some have been bred to have more blue and less black, just be preference selection by breeders.
LML

[Shark]

thanks

[Tiaris]

As already indicated, the black outline can be reduced by selective breeding. This is effective way to produce RH & YH hens with consistently clean head colour.