I see this question brought up every couple of months. For all the naysayers, YES you can pick out the hets. Again, it IS NOT just the belly tracks. Pete Kahl, the largest breeder and first to produce pieds, discovered it and kept all of his possible het females in his early days of pieds. He sold all of the 100% hets. Hatch any number of pieds and hets and you will notice.

Peace out!