Double factor lovebird
American Yellow (Dilute): This mutation does not effect the birds feather pigment at all though. It works the feather structure allowing more light in, and making the feathers appear darker. On most Peach Face Lovebirds it is easy to detect if the bird is a single factor, double factor, or has no dark factor at all.Blue Masked Mutation and Normal Black Masked. The reason for their common name is obvious, although some mutations do not show the black mask, such as the albino mutation shown below. When you hear about blue masked lovebirds they are actually blue BLACK masked lovebirds. The blue does not denote the mask, but the ground color of the mutation. double factor lovebird
Dutch Blue& Blue Pied Peach faced Lovebirds. You also have factors such as Dark Factor and Violet Factor. The dark factor basically darkens the color of the bird. So a blue mutation with one dark factor would be called Medium Blue if it had two dark factors it
Rosyfaced lovebird colour genetics. The science of rosyfaced lovebird colour genetics deals with the heredity of colour variation in the feathers of the species known as Agapornis roseicollis, commonly known as the rosyfaced lovebird or peachfaced lovebird. Rosyfaced lovebirds have the deepest range of mutations available How can the answer be improved?double factor lovebird Jun 17, 2011 DF violet they are refering to DF violet D blue. In European show standards, accepted violet birds have 1 dark factor with 1 or 2 violet factors. I know someone in the US with various violet (sfdf) and DD masked, she has wonderful birds, probably the best i've seen over that side of the pond.