A lab notebook for budgerigar genetics.
Predict offspring colour and mutation outcomes with full Punnett-square accuracy. Browse a worldwide catalogue of budgie mutations. Free, open, no account required.
What other breeders are pairing right now
Breeding Calculator
Pair any cock and hen by mutation. Get exact probabilities of every visual and split combination, including sex-linked inheritance.
Mutation Index
Every documented budgie mutation — from wild-type Light Green to Anthracite, Saddleback and the legendary Rainbow combination.
AI Chick Notes
Each predicted offspring earns its own AI-written lab-notebook description — plumage, eye colour, show potential.
Genetics 101
Plain-language primer on dominance, the dark-factor series, ZW sex-linkage and split birds. For new breeders.
bb · Dd · ii is a cock carrying two blue alleles, heterozygous for dark factor, and homozygous for ino — phenotype: Albino Cobalt cock.