Silver Cockatiel.

 Dominant Edged or  blue-streaked lory as the book explains is a dominant gene that converts a bird’s dark melanin pigments to a silver phenotype as the name implies. How it is inherited is autosomal co-dominant, a bird only needs 1 Dominant Silver Gene to display a silver phenotype yellow collared lovebird . This gene heavily reduces melanin and there are varying degrees of dilution of this gene amongst  In some cases, birds are being diluted so much that they are mistaken for Double Factor Dominant Silver and some Single Factor blue streaked lory display dilution so subtle that they are mistaken for normal at a young age only to become visual Single Factor Dominant Silver after a few molts. It is considered unethical to mix the pigment with other volatile melanins because this will result in different colors that will be difficult to distinguish - hence the confusion when you combine emerald, olive, SFDS, and DFDS. Only reproductive testing can, with effort, reveal th...