Persilangan Lovebird Australian Yellow Face + Green Lovebird Green + Australian Yellow Face = 100% lb green split Australian yellow face Lovebird Australian yellow face parblue + Green = 50% lb green split Australian yellow face & 50% lb parblue split green Lovebird Green + Australian yellow face
2a) EYF1 double factor has a white face and in most cases cannot be visually distinguished from traditional normal blues. (I suspect that some double factors do indeed have a very small retention of very pale yellow on some feathers.) 2b) EYF1 single factor has a pale yellow face. These have been nicknamed as creamface or lemonface.
A Whitefaced Blue (Turquoise) female. The science of rosy-faced lovebird colour genetics deals with the heredity of colour variation in the feathers of the species known as Agapornis roseicollis, commonly known as the rosy-faced lovebird or peach-faced lovebird. Rosy-faced lovebirds have the deepest range of mutations available of all the
umNjFnZ.