How rare are yellow billed zebra finches???

[TheFinchMan101]

Just curious as to how rare the yellow billed zebra finch is???
I'm asking this because lately I've been noticing a few of my young birds are showing yellow beaks.
It's been fairly chaotic lately mutation wise as well, Im having so many different and new colours show through my birds that I've never seen before. Not sure if it's worth saying anything about???

[finchbreeder]

Come on spill the beans, we want to hear it all.
LML

[Diane]

And pics would be good too.

[TheFinchMan101]

Will give it a try.
Most of them are in the aviary so it may be hard to get some good photos.

[MadHatter]

This question is probably better answered by one of our specialist Zebby enthusiasts, but the impression I get is that the Yellow-Billed is fairly uncommon, and most are just a washed-out orange colour. Quality birds with a clear yellow coloured bill would be, I imagine, exceptionally rare.

[TheFinchMan101]

This one i have is a male and is looking very yellow.