Two sex- linked recessive mutations. The fawn mutation changes the black and grey pigments to fawn (brown) pigments.
Lightbacks causes a general reduction of the body colour of the bird, while keeping the black marking intact. The Light back mutation is situated on the same gene as the Chesnut Flanked White (Multiple Alleles). A Male Zebra Finch split for both light back and chesnut flanked white will visibly be a light back. The colour separation of the head/neck and back/wings is required on the European Continent. The convination of Fawn and Lightback requires crossing over to happen.
Is a Brand new mutation and extremely rare Zebra Finch and the most striking of all Zebras.
