Long-tailed grassfinch: incubation period, weaning age and breeding
Long-tailed grassfinch eggs hatch after 12–14 days of incubation. Chicks fledge at 21–23 days and are weaned and independent at about 40–42 days. A typical clutch is 4–6 eggs.
Breeding numbers
| Item | Value |
|---|---|
| Adult weight (g) | 13-17 |
| Length (cm) | 15-17 (incl. tail) |
| Clutch size | 4-6 |
| Incubation (days) | 12-14 |
| Fledging (days) | 21-23 |
| Weaning / independence (days) | 40-42 |
| Breeding age (maturity) | 6–12 months |
| Lifespan (years) | 6-10 |
| Breeding season | All year; best in mild season |
| Sexing | Cock: wider black bib, sings; DNA advised. |
Origin: Northern Australia — Scientific name: Poephila acuticauda
Size: 15-17 (incl. tail) cm, 13-17 g
Breeding and care tips
Active and can be quarrelsome when breeding; one pair per cage. Keep yellow-billed (acuticauda) and red-billed (hecki) forms apart.
Mutations and colours
Mutations Zajel calculates: Fawn. Named only (not confirmed or polygenic — not used in the calculation): Agate, SL ino, Topaz, Opal, Recessive pied, Pastel.
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
- Budgerigar
- Canary
- Zebra finch
- Red-headed finch
- Gouldian finch
- Bengalese society finch
- Java sparrow
- Owl finch
Frequently asked questions
How long do Long-tailed grassfinch eggs take to hatch?
Long-tailed grassfinch eggs hatch after 12-14 days of incubation.
How many eggs does a Long-tailed grassfinch lay?
Usually 4-6 eggs per clutch.
When do Long-tailed grassfinch chicks leave the nest?
Chicks fledge at about 21-23 days old.
When are Long-tailed grassfinch chicks weaned?
They are weaned and independent at about 40-42 days.
At what age can a Long-tailed grassfinch breed?
A Long-tailed grassfinch reaches breeding age at about 6–12 months; pairing earlier is not advised.
What is the Long-tailed grassfinch breeding season?
All year; best in mild season
How do you tell a male Long-tailed grassfinch from a female?
Cock: wider black bib, sings; DNA advised.
How long does a Long-tailed grassfinch live?
About 6-10 years with good care.