Breeding, Genetics, and Canary Colors
by Wilber Cedrez
My Canary Aviary
Yellow/green refers to yellow ground color with black melanin.
White/blue refers to dominant white ground color with black melanin.
The absence of melanin results in a clear bird, while presence of melanin results in degrees of variegation through self.
A cinnamon bird could feather
out as a clear bird, with no melanin showing, so watching for eye color in chicks will help to identify the cinnamon genes presence.