It reminds me of the early pied mutations in Zebra Finches. It's been decades since I kept them; but, if I remember correctly, some birds with the normal colour showed up with random areas of no colour = white. By selectively breeding these pied birds to increase the areas of white, the pure white Zebra Finch was eventually develped; but, it was not albino. It had normal dark eyes and was in effect, the white version of the normal coloured form.
I wonder if this tendency to show so much white on the pouch could be increased with each successivve generation and (through some selective breeding), eventually produce a pure white schlimii? That would be cool!
