Cockatiel Variety · Domestic colour mutation (wild type native to Australia)
Fallow
A rarer mutation giving diluted, warm brown plumage and distinctive red eyes.
By the WARN Research & Conservation TeamChecked against IUCN Red List & CITES sourcesLast updated
In brief
The Fallow cockatiel is a rarer recessive mutation that dilutes the grey to a warm yellowish-brown and gives red or plum eyes. It looks similar to cinnamon but is genetically distinct and often paler.
Fallow: At a Glance
| Origin | Domestic colour mutation (wild type native to Australia) |
|---|---|
| Size | Small (30–33 cm including tail; 80–120 g) |
| Size & weight | 80–120 g |
| Lifespan | 15–25 years with good care |
| Plumage | Diluted warm brown plumage with red or plum eyes |
| Temperament | Gentle, calm, affectionate |
| Best suited to | Patient owners and families; needs daily interaction and out-of-cage time |
History & Origins
Fallow is an autosomal recessive mutation that reduces melanin and leaves red-toned eyes, unlike the sex-linked cinnamon it resembles. It is less common in the pet trade. Like all light-eyed mutations, fallows can be slightly more sensitive to bright light.
Fallow Fun Facts
- Fallow is a recessive mutation, unlike sex-linked cinnamon.
- Its eyes stay red or plum-coloured into adulthood.
- It is less common than the other main mutations.
- Fallows are sometimes confused with cinnamons but are genetically different.
Fallow Common Health Issues
Conditions seen more often in this breed, and how owners and vets help manage them. This is general guidance, not veterinary advice — always speak to your vet.
Vitamin A deficiency
Seed-heavy diets lack vitamin A, leading to respiratory infections, poor feather quality and mouth lesions.
Care: Offer orange and dark-green vegetables and a vet-approved pellet diet; an avian vet can advise on supplementation.
Fatty liver disease
All-seed diets high in fat lead to hepatic lipidosis, causing an overgrown beak, poor feathering and lethargy.
Care: Switch gradually to a formulated pellet base with vegetables under avian-vet guidance and limit fatty seeds.
Night frights
Cockatiels are prone to thrashing panic in the dark, injuring wings and breaking flight feathers against cage bars.
Care: Use a dim night light, keep the cage away from sudden noises, and provide a calm, predictable sleeping spot.
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