okay, after the hours of reading posts and trying to learn stuff I'm going to have a crack at telling you guys what I think Billy is - he has just come out of Quarantine with a few others.....

 

okay here goes.....

 

Green Opaline?????

 

 

Green Opaline, might also be masking yellowface.

Yes!! I got it.... :yes: well the main part anyway!

Thanks Daz!

The face and collar are so brillent in yellow it makes me think there could be yellowface there.

 

If you test breed, it should be to a normal blue, but remember that if the opaline is not split blue the off spring could all be green and still be masking yellowface.

if you pair to a yellowface some of the offspring could be double factor yellowface which look like a normal white face skyblue.

 

Bit of a mistery, isn't it :yes: