I think it's just heterozygous for pied. Meaning only one allele is of that particular gene. We think in terms of recessive and codominant. The pied gene seems to be a little of both. It's het form shows a distinct phenotype but not always. Such an interesting gene...
08_clutch#XX - Hatched! - Eastern Fence Lizards! - Found these eggs and incubated them at room temp in the snake building. What a fun little project. Of course I promptly let them free....