This mutation, which is one of the three main yellowface mutations in budgies, was first found in the aviary of English breeder G. Lait in 1936. They have very pale yellow faces and body plumage suffused with small amounts of yellow in their SF form (pictured). Their DF form, interestingly, is completely indistinguishable from a Blue budgie. These DFs do not show any hints of yellow whatsoever, and cannot be visually identified without test breeding.
