The right crosses in the London Fancy are not what most people assume. Understanding the genetics matters more than following assumptions.
Never Classic × Classic
Contrary to expectation, London Fancy × London Fancy is the worst of the good pairings. When both parents carry advanced Progressive Greying, the offspring tend to come out lipochromic — clean yellow or white birds with little to no melanin in wings and tail. You lose the very contrast that defines the breed.
The gold standard: London Fancy × Melanic
Melanics carry the Progressive Greying gene but keep full melanin expression. They bring intense, high-quality melanin to the wings and tail of the offspring — exactly the dark-on-light contrast of a top London Fancy. It is the cross that consistently produces the best results.
Other valid crosses
- Spangled × Melanic — excellent and highly productive; it generates volume and genetic diversity within the family.
- London Fancy × Spangled — useful for cleaner birds while keeping reasonable melanin in flights and tail.
Melanics are the engine
Melanics are not "failed" London Fancies. They are the engine of any serious stud: without them you cannot produce top London Fancies consistently. Every productive pairing stays within the London Fancy family — the Lizard never enters.
Tool: the pairing calculator predicts results based on this genetics.