What Your Eyes See and What the Genes Are Doing Are Two Different Things
You hatch a split-to-lavender from two birds that look identical on the outside. One of their offspring is wild-type in appearance, and you assumed it was clean. You put it back into the breeding pen. Three generations later, lavender is popping up in a line you thought you'd cleared it from. The problem wasn't the bird's phenotype — it was the genotype you failed to record when you had the bird in your hands.
This database is what makes the genotype visible on paper, even when the feathers don't show it.
E Extension: The Locus That Changes Everything Downstream
E Extension of Black is the master switch. Whether a bird is E/E (extended black), E^R/E^R (gold birchen, brown-red), E^Wh/E^Wh (wheaten), e+/e+ (wild type, jungle fowl partridge pattern), or e^b/e^b determines how every other colour modifier expresses. Columbia on an e+ bird looks completely different from Columbia on an E bird. Melanotic on a wheaten base creates a pattern that beginners mistake for a different breed entirely.
The dropdown encodes seventeen combinations — homozygous, heterozygous, and cross-allele pairings — referenced against the kippenjungle notation system that the serious genetics communities use. Pattern name, referenced as-per-kippenjungle, lets you cross-check your genotype prediction against the community-standard phenotype name. When you see "Ml/ml+ on E^R background" in your Notes field and look up the Pattern name field, you're working from the same vocabulary as every other breeder who uses that reference.
The Modifier Stack: Fourteen Loci That Make Colour Breeding Actually Predictable
Columbia. Darkbrown. Pattern gene. Melanotic. Charcoal. Mahogany. Dilute. Inhibitor of gold. Champagne Blonde. Silver. Barring. Chocolate. Blue. Mottling. Dominant White. Recessive White. Lavender.
Fourteen modifier loci, each with homozygous dominant, heterozygous, and homozygous recessive states encoded in standard notation. The Silver locus field has thirty-three dropdown options because Silver is sex-linked and the hemizygous states for females need separate handling from the autosomal states in males — the Silver/Barring sex-linkage is one of the most misunderstood aspects of colour breeding in Araucanas and Legbars.
When you fill in all fourteen fields for a bird based on what you know from its parentage and phenotype confirmation, the record becomes a genetic fingerprint. Filter your database for Barring: B/b+ and Dilute: Di/di+ and you have your expected split birds. Filter for lav/lav and Known Father cross-referenced to a specific sire and you have your breeding plan for next spring.
Pedigree and Offspring: The Three-Generation View
Known Father. Known Mother. Offspring. Three fields that build a pedigree chain across entries. The Offspring field references the names of birds from later records — as your database grows, each entry links forward and backward through the flock's genetics history. When a bird produces an unexpected phenotype in its offspring, you trace back through the Known Father and Known Mother fields and find the unknown heterozygosity that slipped through.
Hatch Date, Chick Picture, Pattern Picture. The chick photo matters because juvenile plumage in many breeds looks nothing like adult plumage — Silver Duckwing cockerels hatch with chipmunk striping that tells you nothing about their adult pattern without a reference. The pattern picture at adult stage is the phenotype confirmation that either validates your genotype prediction or tells you to go back and reconsider what the bird is carrying.
The Journal Record number field links back to a physical notebook by page — for breeders who maintain parallel paper records for shows and insurance purposes, the cross-reference is the bridge between digital and physical that keeps neither system orphaned.