Tools for
bird breeders
Ten working calculators and references, built on the same species data and genetics engine as the AviLedger app.
Use them without signing up, on your phone in the birdroom. The app is there when you want the answers kept against your own birds.
Mutation pairing calculator
Set two genotypes, get the clutch outcomes split by sex, with the Punnett square behind every figure. Twelve species, sex-linked and recessive handled properly.
Open the calculator 02Hatch date & candling timeline
Enter the lay date and species. Get the candling window, expected hatch, ringing window and weaning date as real calendar dates.
Open the calculator 03Ring & band size lookup
Closed-ring diameters by species, searchable, with the ringing window in days from hatch.
Open the lookup 04Cage & aviary size guide
Minimum and recommended dimensions by species and number of birds, with bar spacing and flight length.
Open the guide 05Safe & toxic food database
Search any food and get a straight answer: safe, in moderation, or never. With the reason why.
Search foods 06Species compatibility checker
Can these two share an aviary? Pick a pair and get a verdict with the reasoning and the conditions attached.
Check a pairing 07Hand-feeding volume & schedule
Feed volume from the chick's current weight, with the feeds-per-day schedule for its age.
Open the calculator 08Breeding season planner
When to pair up where you live, working back from daylight and season rather than a northern-hemisphere calendar.
Open the planner 09Inbreeding coefficient estimator
Wright's coefficient for a pairing, built from a pedigree you fill in by hand. Four generations, no account.
Open the estimator 10Lifetime cost calculator
What a bird actually costs over its life: feed, vet, housing and time, against its expected lifespan.
Open the calculatorThe tools should exist whether or not you buy anything.
Every breeder has worked a hatch date out on the back of a feed bag, or asked a forum whether a food is safe. That information should be one search away, correct, and not behind a signup.
What the app adds is memory. It keeps the answers against the actual bird, so next season you are not working it out again.
Keep the answers against your own birds.
Start your 14-day free trial