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Double-barred finch
Stizoptera bichenovii · also called owl finch, Bicheno's finch, owl-faced finch, double-bar finch
The double-barred or 'owl' finch is a small Australian estrildid named for the owl-like facial mask formed by two black bars across its white face. It is a peaceable, active aviary bird best kept in pairs or small groups.
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Quick facts
| Size | Small — about 4 inches head to tail, roughly 8–12 g. |
| Lifespan | 5–8 years |
| Social needs | group |
| Native region | Australia (northern and eastern, plus arid interior) |
| Origin | Old World |
| Climate | ⛅ Subtropical |
| Family | Estrildidae |
| Genus | Stizoptera |
Part of the Finches
Finches are small, social seed- and insect-eating songbirds kept primarily as aviary and cage birds for their color, song, and lively flocking behavior rather than for handling.
Habitat & space requirements
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Color & pattern variants
Natural variants occur in the wild; selectively bred (man-made) variants were developed in captivity.
Natural
Selectively bred (man-made)
Habitat & enclosure
Owl finches are active, agile fliers that do best in a roomy flight cage or planted aviary that is wider than it is tall — at least about 30–36 inches of flight width for a pair, larger for a group. Bar spacing must be narrow (around 3/8 inch) to prevent escapes and head entrapment, with an easy-clean substrate and arranged perches that keep flight lanes open. They appreciate dense cover such as live or artificial plants and grass tussocks where they can shelter and forage.
Keep them warm and draft-free; owl finches are a little less cold-hardy than zebra or society finches and should not be exposed to chilling temperatures. Provide full-spectrum or natural light on a roughly 12-hour cycle and a daily bath dish. Keep all birds away from PTFE/Teflon fumes, smoke, scented products, and aerosols, which can be fatal.
Substrate
Cover the cage floor with plain paper, paper towel, or a thin layer of fine bird-safe sand/grit-sheet for easy cleaning; keep it dry and changed often since these tiny finches are sensitive to damp, dirty conditions. Avoid deep loose substrate that traps moisture and bacteria.
Equipment & setup
Provide a horizontally oriented flight cage or aviary with narrow bar spacing and plenty of fine natural perches and twigs, as flight space matters more than height for these active finches. They do best at stable room temperatures (avoid below the mid-60s F and cold drafts), benefit from full-spectrum/UVB lighting, and need a shallow bath dish since they bathe daily.
Diet
Offer a quality finch seed mix or small finch pellet as the base, with a strong emphasis on fresh additions: leafy greens, sprouted and soaked seeds, seeding grasses, and small amounts of chopped vegetables. Live food such as small mealworms or egg food becomes important during breeding and chick-rearing, as this species takes more readily to insect protein than some finches.
Provide a cuttlebone or mineral block for calcium and fresh water daily. Avoid avocado, chocolate, caffeine, alcohol, onion, garlic, and salt, all toxic to birds.
Behavior & temperament
Double-barred finches are sociable, peaceful, and busy, foraging low in vegetation and on the ground in pairs and small flocks. They are observation birds rather than hand pets, valued for their tidy 'owl mask' looks and soft, quiet contact calls and song. They generally mix well in a community aviary with other gentle finches but can be a little timid, so they should not be housed with aggressive species.
They are flock animals and should be kept at minimum as a pair. Provide grasses, millet sprays, and safe greenery for natural foraging and shredding, plenty of flight space for exercise, and uninterrupted darkness at night.
Health
Common health issues include air-sac and scaly-leg mites, respiratory infections, gastrointestinal upsets, and egg binding in hens. Because they are slightly more delicate and cold-sensitive than the hardiest finches, chilling and stress can predispose them to illness, so stable warmth and good hygiene are important.
Maintain a varied diet with adequate calcium and live food during breeding, and seek avian-veterinary care promptly for a fluffed, lethargic, bottom-sitting bird, open-mouth or tail-bobbing breathing, or sudden loss of song. Annual wellness checks help catch problems early in a bird that instinctively masks illness.
Tips, DIY & hacks
Owl finches are peaceful and can be kept in planted aviaries with grasses and small shrubs for cover and natural foraging; offer live food (small mealworms, fruit flies) especially when breeding. Provide covered wicker or wooden nest baskets tucked into foliage and plenty of soft nesting material like coconut fiber and feathers, and keep them in pairs or small groups as they are gregarious and stress in isolation.
Sources
- Double-barred finch — Wikipedia (wiki)
- VCA Animal Hospitals — Finches: General (care guide)
- Association of Avian Veterinarians — Pet Owner Resources (care guide)
- Wikipedia: Double-barred finch (wiki)