Guides → Breeding records

What records should a bird breeder keep?

Good records are what separate a breeding programme from a collection of birds. They answer the questions that come up years later, when memory has long since failed: who were this bird's parents, what did that pair produce, and can you prove it?

The bird itself

Every bird needs an identity that survives a sale, a move and a decade. That means the ring or band number and the year, the species and mutation, sex and how it was determined, the hatch date, and where the bird sits, row, cage or flight. Add a photo. Descriptions of mutations are argued about endlessly; a photograph is not.

Record the origin too. A bird bred in your own aviary, a bird bought in, and a bird on loan are three different things when it comes to permits and sales, and the distinction is impossible to reconstruct later.

Pairs and pedigree

A pairing record is only useful if it survives the birds. Store the pair as a relationship (this cock, this hen, this season) rather than a note, so that every chick produced carries its parentage automatically. That is what makes a pedigree possible, and a pedigree is what tells you whether the pairing you are about to make is a sensible one.

Inbreeding creeps up quietly in a closed aviary. Two birds that look unrelated are often a grandparent apart, and the effect shows in fertility and chick vigour long before it shows in appearance.

Clutches, eggs and hatching

Record the clutch, then the individual eggs: laid, fertile, cleared, hatched, dead in shell. It feels fussy in the moment and it is the single most valuable dataset you will ever own, because it turns "that pair is not doing well" into a number you can act on. A pair producing five eggs and one chick has a fertility problem; a pair producing five fertile eggs and one chick has an incubation or brooding problem. Those need different fixes.

Dates matter here. See the incubation table and calculator for candling and hatch scheduling.

Chick growth

Weigh daily at the same time, ideally before the first feed. Plot it. A curve tells you things a number cannot: a chick that gains steadily then flattens for two days is a chick worth examining today rather than at the weekend.

Permits and compliance

Permits expire, and they always expire at the least convenient moment. Keep permit and CITES references against the bird rather than in a folder, with the expiry date recorded so it can warn you in advance. See the CITES guide.

Money

Most breeders have no idea whether the aviary makes or loses money, because the costs are small and constant while the income is occasional and memorable. Record sales and expenses against the bird and the season, and the answer stops being a guess.

Common questions

What records are bird breeders legally required to keep?

It depends entirely on your country and the species. Birds on CITES Appendix I, and their equivalents in national law, generally require documented parentage, ring or microchip identification and permits for transfer. Check your national management authority, the requirements differ far more than most breeders expect.

What is a closed ring and why does it matter?

A closed ring is a seamless band slipped over the foot in the first days of life, when the foot is still small enough. Because it cannot be fitted to an adult bird, it is accepted as evidence a bird was captive-bred, which is why ring number and ring year are the backbone of a breeding record.

Why weigh chicks?

Weight is the earliest signal that something is wrong. A chick that stalls or drops against the curve is telling you about crop function, feeding or illness days before it looks unwell. And a recorded curve turns a vague worry into a decision.