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Lovebird Genetics
by KinBird Aviary
Lovebird Genetics Calculator
The most complete lovebird genetics calculator — Opaline, Aqua, Yellow Face, Cinnamon, Fallow and more.
The most complete lovebird genetics calculator — Opaline, Aqua, Yellow Face, Cinnamon, Fallow and more.
No Account Needed
This genetics tool is designed to instantly predict offspring mutations for any lovebird pairing — from common Green and Blue series to rare Aqua Homo, Pale Fallow, and Parblue combinations. Select parent colors, add mutation traits, and get clear probability outcomes in seconds. No account required. No data collected. While lovebird genetics tools have existed since the mid-2000s, this is a complete rebuild for 2026 — built to handle modern mutation complexity that older systems were never designed for. Privacy Policy →
How to Use
Choose a base color for each parent from the full series — Green, Blue 1, Blue 2, Parblue (B1B2), Aqua B1, Aqua B2, or Aqua Homo, with optional Yellow Face. Then add mutation traits like Opaline, Ino, Pale Fallow, Cinnamon, or Dilute. The genetics engine calculates all possible offspring combinations and shows each one as a percentage.
Some mutations in lovebirds are sex-linked recessive (SL) — meaning they behave differently depending on whether the carrier is male or female. Opaline, Pallid, and Cinnamon are SL mutations. This calculator handles sex-linked inheritance automatically, showing males and females in separate columns with correct split probabilities.
Mutations like Ino, Pale Fallow, Dun Fallow, Bronze Fallow, and Dilute follow autosomal recessive (AR) inheritance — they appear only when a chick inherits the gene from both parents. The calculator tracks split carriers (birds that carry the gene without showing it) and displays them clearly in the results.
Aqua lovebirds are among the most sought-after mutations globally. The Aqua gene sits between Green and Blue on the color spectrum. This tool supports all Aqua variants — Aqua B1, Aqua B2, and Aqua Homo — and correctly models pairings with Parblue (B1B2) birds, which carry one Blue 1 and one Blue 2 allele. Further reading: Blue, Aqua & Turquoise mutations in lovebirds.
This lovebird genetics calculator is used by breeders across South Asia, Southeast Asia, the Middle East, and Europe. Whether you are a lovebird breeder in Pakistan, Bangladesh, India, Indonesia, or the Philippines — the tool works the same everywhere. No account needed, no language barrier. Open it on any phone or computer, anywhere in the world.
This calculator is built strictly on the genetics documented in the Lovebird Compendium (Dirk Van den Abeele, 2016) — the most comprehensive peer-reviewed scientific reference on Agapornis roseicollis mutations. Sapphire, Decino, Pastel, and Pied are not covered in the 2016 edition, meaning their inheritance mechanisms have not been formally documented to the same scientific standard. Including them without a verified genetic model would produce unreliable results. As new research and editions become available, the calculator will be updated to reflect them.
Supported Mutations
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Frequently Asked Questions
Yes — it is both a lovebird genetics calculator and a lovebird pairing calculator in one. You select a male and a female, including their base color series and any mutation traits, and the engine instantly calculates every possible offspring combination with exact percentages. It handles simple single-mutation pairings, complex multi-mutation combinations, sex-linked traits like Opaline and Cinnamon, and rare series like Aqua Homo and Parblue. The result is a complete breakdown of what your specific pairing can produce — which is exactly what a lovebird pairing calculator is designed to do.
Yes, completely free. No account, no subscription, no ads. Built by KinBird Aviary as a gift to the global lovebird breeding community. It will stay free permanently. No personal data is collected when you use the calculator — see our Privacy Policy for full details.
A "split" bird visually appears normal but carries one copy of a recessive mutation gene. When paired with another split or a visual mutation bird, they can produce mutation offspring. The calculator shows all splits in the predicted offspring with their exact probability.
In this calculator, Opaline, Pallid, and Cinnamon are marked as sex-linked recessive (SL). For sex-linked mutations, females cannot be splits — they either show the mutation visually or don't carry it at all. The calculator automatically separates male and female offspring predictions for SL traits.
Yes. Each parent can carry up to 6 mutation traits simultaneously. The engine correctly handles combined mutations — for example, an Aqua B2 Yellow Face Opaline bird paired with a Parblue Ino will show all possible offspring combinations including doubles and triples.
Yes — it works everywhere with an internet connection. The calculator is actively used by lovebird breeders in Pakistan, Bangladesh, India, Indonesia, the Philippines, the UAE, Saudi Arabia, and across Europe and the US. There are no country restrictions, no downloads, and no installs required. The same lovebird genetics calculator runs on any Android phone, iPhone, or computer in any country. It was built and validated with breeders from Bangladesh and Pakistan specifically, so the mutation set reflects what breeders in South Asia and Southeast Asia actually work with.
Because every lovebird has exactly two alleles at the blue color locus — one inherited from each parent. A visually Green bird must have at least one Green (G) allele to show green coloring. That leaves only one remaining slot. That slot can hold G (pure green), B1 (split Blue 1), B2 (split Blue 2), or A (split Aqua) — but only one of them. If both slots were taken by two different blue alleles — for example B1 and B2 — the bird would no longer be visually Green. It would instead be a Parblue (B1B2), Aqua B1, or Aqua B2. So a Green split can only ever carry one hidden blue gene at a time. This is why the calculator only allows one blue split selection for Green base birds.
The Aqua gene (A) is a separate allele in the Blue locus. Aqua B1 carries one Aqua and one Blue 1 allele. Aqua B2 carries Aqua and Blue 2. Aqua Homo carries two Aqua alleles — the purest form. Homo Aqua birds are rarer and typically command the highest market value among Aqua variants.
Aqua B1, Aqua B2, and Aqua Homo each produce slightly different visual results when stacked with autosomal recessive mutations. Aqua B1 Pale Fallow shows a soft, washed greenish-aqua tone with noticeably reduced melanin. Aqua B2 Dilute produces a pastel, muted aqua that sits lighter than standard Aqua B2. Aqua Homo Ino creates a near-white bird with faint aqua undertones — one of the rarest visuals in the hobby. Because Aqua Homo carries two Aqua alleles, it always passes the Aqua gene to every offspring, making it the most consistent and predictable base for stacking with Pale Fallow, Dun Fallow, Dilute, or Ino. Aqua B1 and B2 variants will produce splits in some offspring depending on the pairing, so knowing your bird's exact Aqua type matters significantly when planning rare combination pairings.
Yellow Face is an autosomal recessive mutation that adds yellow pigment to the face and flight feathers. It can be stacked onto any Aqua or Parblue base to create some of the most visually striking birds in lovebird breeding. Parblue Yellow Face (B1B2 YF) shows a turquoise-blue body with a distinct yellow facial wash. Aqua B1 Yellow Face produces a warm greenish-aqua bird with yellow face markings. Aqua B2 Yellow Face sits deeper in the aqua spectrum with strong yellow face contrast. Aqua Homo Yellow Face is among the rarest — a pure saturated aqua base with full yellow face expression, and every offspring inherits the Aqua gene. These bases can stack further with Pale Fallow, Dun Fallow, Dilute, and Ino. For example, Aqua Homo Yellow Face Pale Fallow produces a delicate near-pastel bird with reduced melanin and full yellow face, while Aqua B2 Yellow Face Ino creates a near-white bird with a warm yellow wash across the face and flight feathers. The calculator handles all of these combinations correctly.
Bronze Fallow is one of the more recently documented lovebird mutations, first appearing in European breeding programs in the early 2000s. It is an autosomal recessive mutation recognisable by its distinctive bronze-brown body feathering and burgundy-red eyes — which distinguish it clearly from Pale Fallow and Dun Fallow, both of which have pinkish-red eyes. The feather colour sits in a warm golden-bronze range rather than the cooler grey-green of Dun Fallow or the pale yellowish-white of Pale Fallow. Bronze Fallow carries a critical health warning: Bronze Fallow × Bronze Fallow pairings result in near-100% chick mortality. For this reason, Bronze Fallow birds must never be paired together and should only be bred to normal birds or known splits, which produce healthy offspring and splits without the mortality risk. See the Bronze Fallow mutation record on MutaBase for full scientific documentation.
The Lovebird Compendium is widely considered the most comprehensive scientific reference on lovebird genetics and mutations ever published. Written by Dirk Van den Abeele, a Belgian aviculturist and geneticist with decades of experience breeding and studying lovebirds, the book was published in 2016 and spans 769 pages. It covers the genetics, inheritance, visual characteristics, and breeding outcomes of virtually every known lovebird mutation in scientific detail. Van den Abeele's work is the primary reference used by serious breeders and researchers worldwide when studying complex mutations like Aqua, Pale Fallow, Dun Fallow, Bronze Fallow, Opaline, and Violet. The genetics engine behind this calculator was cross-referenced against the Lovebird Compendium to ensure accuracy across all mutation types. Published by Avian Publications.
How to Read Your Results
Each result shows a probability — not a guarantee. These are Mendelian inheritance percentages across a statistically large number of chicks. In any single clutch of 4–6 eggs, the actual outcome will vary.
If a result shows 25% Split Ino, it means that on average, 1 in every 4 chicks from this pairing will carry the Ino gene without showing it visually. In a single clutch of 4 eggs you might get 0, 1, or 2 split chicks — the 25% is a long-run average, not a per-clutch promise. Over many pairings and clutches, the ratio will converge toward 25%.
When a sex-linked mutation like Opaline, Pallid, or Cinnamon is involved, the calculator splits results into a male column and a female column. This is because sex-linked recessive genes behave differently by sex — females cannot be splits. Any percentage shown under the female column for an SL mutation means those chicks will be visual, not split.
Visual means the chick shows the mutation in its feathers. Split means it carries one copy of a recessive gene but looks normal — it can pass the mutation to its own offspring. Homozygous (Homo) means it carries two copies of a recessive gene and always passes it on. For dominant mutations like Dark Factor, Homo and visual mean slightly different things — double factor birds show a deeper color than single factor.
When both parents carry multiple mutations, the results show every possible combination. A result like "12.5% Visual Pale Fallow Split Ino" means a chick that visually shows Pale Fallow and also carries the Ino gene hidden. These combined outcomes are calculated using independent assortment — each gene pair is calculated separately and then multiplied together for the final probability.
Methodology & Sources
The genetics engine in this calculator is based entirely on the Lovebird Compendium by Dirk Van den Abeele (2016) — a 769-page peer-reviewed scientific reference covering inheritance mechanisms for every documented Agapornis roseicollis mutation. Every inheritance type (sex-linked recessive, autosomal recessive, autosomal dominant incomplete), every allele relationship, and every edge case in the calculator maps directly to documented genetic models in that publication. No guesswork, no community rumor, no unverified pairing claims.
The engine was built and cross-validated against real breeding outcomes by three experienced breeders:
Their combined real-world validation caught edge cases that pure theory alone would have missed.