my finch had 3 babys a few months ago the male is a normal orange cheek and the hen is a CFW, 2 of the babys are black cheeks with all the normal markings, the other one is a fawn color with a yellow beek and black cheeks, from what i can tell its a hen, does anyone know what type of male i should use to keep the fawn color in there babys ? i will post a pic of her when i get a chance.
Thanx
Andrew
Black Cheek and Yellow Beak are autosomal recessive mutations. For you to get Black Cheek and Yellow Beak offspring, both parents must be at least split to both mutations. This means your parent birds are both split to Black Cheek and Yellow Beak.
CFW and Fawn are sex-linked recessive mutations. To get Fawn offspring from parents that don't show Fawn, your male must be split to Fawn (females can't be split to sex-linked mutations). This also means that the Fawn offspring is a female, as Fawn males must inherit the mutation from both parents (for them to get it from Mom, she must be Fawn). Your male offspring might be split to Fawn, but you wouldn't know for sure without test-breeding.
Based on the offspring they produced, your mama-finch is CFW split to Yellow Beak and Black Cheek, and your papa-finch is Normal split to Yellow Beak and Black Cheek and Fawn. All your male offspring will be split to CFW. If all your offspring are Black Cheeks, then you really lucked out -- each would have only a 25% chance of being visual for this mutation if both parents are splits.
In order to obtain visual Fawn offspring from your Fawn hen, you will need a male that either shows or is split to Fawn. Your male parent zebra must be split to Fawn if he has a Fawn daughter, so you could breed the Fawn hen back to her father. Doing so, each offspring has a 50% chance of being Fawn, in both sexes. If you get a Fawn male offspring, breeding him to any non-Fawn female will give you Fawn daughters and non-Fawn sons (but they'll be split to Fawn).
You could also find an unrelated Fawn male (it's not a rare mutation). You might find zebra finches with combined mutations that include Fawn. Examples would be Fawn Cheek (Gray Cheek and Fawn), Dominant Cream (Dominant Silver and Fawn), Fawn Penguin (which are actually
very cute...check them out), etc. If the additional mutations are autosomal recessive, you won't see them in the next generation unless your Fawn baby also happens to be split to them, but you will see the Fawn mutation come through since both parents would have it.