Every chick from this pairing is a Rosetta.
Every chick from this pairing carries one copy of roux and none of them show it. Bred back to each other, or to any other carrier, roux reappears in about a quarter of the next hatch — which is why red-eyed chicks seem to come from nowhere. Band them now or you will lose track of which birds carry it.
| Chick looks like | Carries, but does not show | Egg shell (hens) | Share of hatch |
|---|---|---|---|
| Rosetta | roux | Normal | 100% |
Simple recessive, homozygous. Two visibly roux parents breed 100% roux.
Roux is a simple recessive on its own locus — a bird needs two copies to show it. Two visibly roux parents breed 100% roux. A roux bird bred to a non-carrier gives normal-looking chicks that ALL carry roux, and carrier × carrier throws about a quarter roux — which is why red-eyed chicks 'appear from nowhere' in coveys that quietly carry it.
Full Roux Dilute guide →Extended Brown homozygote (E/E). Tibetan × Tibetan breeds true.
Extended Brown (E) is incompletely dominant. Two copies (E/E) make a Tibetan; one copy (E/e+) makes the lighter, rusty-chested Rosetta. That means Tibetan × Tibetan breeds true, while Tibetan × Pharaoh gives you all Rosettas — a tidy, predictable system that makes this family great for learning genetics.
Full Tibetan guide →Need a trait that is not a named variety? Use the full genetics calculator to set alleles directly for recessive, dominant, incomplete-dominant and sex-linked traits.
Quail Keeper Max stores every bird's variety and celadon status, builds 4-generation pedigrees, and predicts the hatch from your actual pairings — so the invisible carriers in your covey stop being invisible.
See Breeding & Genetics →