When the babies start to get their wing feathers in, you'll be able to tell the color. From my experience, those that have the brwon chipmunk color have gone on to be very light blues. The one's in my flock have been carrying & passing on the Lav gene to offspring. When breeding two of these together I have had Lavenders pop out, as well as the B/B/S, since they are also carrying Blue. However in "my line" I have also gotten Porcelain. Not saying that this bird does or will, but just that in my stock it happens. Brenda saw the results of my "Project Breedings" at the last show.