Bengalese society finch: incubation period, weaning age and breeding
Bengalese society finch eggs hatch after 16–17 days of incubation. Chicks fledge at 20–25 days and are weaned and independent at about 35–42 days. A typical clutch is 4–6 eggs.
Breeding numbers
| Item | Value |
|---|---|
| Adult weight (g) | 13-16 |
| Length (cm) | 11-12 |
| Clutch size | 4-6 (3-8) |
| Incubation (days) | 16-17 |
| Fledging (days) | 20-25 |
| Weaning / independence (days) | 35-42 |
| Breeding age (maturity) | 4–6 months |
| Lifespan (years) | 5-10 |
| Breeding season | All year (best Sep-Apr) |
| Sexing | Only cocks sing/dance; otherwise DNA or isolation song test. |
Origin: Domesticated in China and Japan centuries ago — Scientific name: Lonchura striata domestica
Size: 11-12 cm, 13-15 g
Breeding and care tips
Calmest finch and the best foster for Gouldian and Australian finch eggs. One pair per cage, as several birds pile into one nest and two hens may lay together.
Mutations and colours
Mutations Zajel calculates: Chocolate (mocha brown), Fawn (red-brown), Cream-ino, Crested. Named only (not confirmed or polygenic — not used in the calculation): Grey, Pastel (dilute), Albino, Pied / white, Frilled.
Zajel's genetics lab predicts chick colours from both parents for established mutations only; disputed ones are shown with a note and left out of the calculation.
Need the exact date? Use the egg hatch calculator and the weaning age chart.
Related species
Frequently asked questions
How long do Bengalese society finch eggs take to hatch?
Bengalese society finch eggs hatch after 16-17 days of incubation.
How many eggs does a Bengalese society finch lay?
Usually 4-6 (3-8) eggs per clutch.
When do Bengalese society finch chicks leave the nest?
Chicks fledge at about 20-25 days old.
When are Bengalese society finch chicks weaned?
They are weaned and independent at about 35-42 days.
At what age can a Bengalese society finch breed?
A Bengalese society finch reaches breeding age at about 4–6 months; pairing earlier is not advised.
What is the Bengalese society finch breeding season?
All year (best Sep-Apr)
How do you tell a male Bengalese society finch from a female?
Only cocks sing/dance; otherwise DNA or isolation song test.
How long does a Bengalese society finch live?
About 5-10 years with good care.