Cockatiel care: cage, diet, behavior and health basics

Cockatiels are small, crested parrots from Australia and one of the easiest parrots to love: they are affectionate, whistle tunes and often bond tightly with their people. The Merck Veterinary Manual describes them as lively and vocal but relatively quiet compared with big parrots — and notes they can live up to 20 years. That longevity is the first thing to understand before you bring one home. This guide covers housing, feeding, behavior and health. For other small birds, see our parakeet care guide and canary care guide, or the full pet birds library.

Is a cockatiel a good first bird?

Often, yes — with realistic expectations.

Trait	Cockatiel
Lifespan (Merck)	Up to 20 years
Noise	Vocal, but quieter than large parrots
Talking	Some males learn a few words; most excel at whistling
Social needs	High — bonds with people and flockmates
Dust	Produce powder down; regular cleaning helps
Good for	Apartments, beginners willing to give daily time

Merck adds that some rarer color mutations may be more fragile, so ask the breeder about the parents’ health. Pick a bird that is alert, has smooth feathers, clear eyes and nostrils, and clean vent feathers.

What size cage does a cockatiel need?

Merck’s guide to providing a home for a bird says the cage should be at least one and a half times the bird’s wingspan in all directions, larger for more than one bird, and that most birds prefer rectangular cages. Cockatiels have long tails and a crest, so a cage that is long and reasonably tall matters — the tail should not drag on the floor grate when the bird perches.

Setup essentials:

• Bar spacing small enough that the head cannot pass through.
• Natural wood perches of varying diameters at different heights, leaving clear flight space.
• Separate dishes for pellets, fresh foods and water, cleaned daily.
• Shreddable and foraging toys — cockatiels love to chew soft wood, paper and cardboard. Merck suggests avoiding mirror toys.
• A play stand or perch outside the cage for daily supervised time.

Place the cage in a lived-in room, against a wall, away from windows, air conditioning and the kitchen, as Merck recommends.

What should cockatiels eat?

VCA Animal Hospitals’ cockatiel feeding guide is clear that seed is not a complete diet. Commercial seed mixes are high in fat and carbohydrates and lack many nutrients, and an all-seed diet can lead to ill health and a shortened lifespan.

Food	VCA guideline	Tips
Pellets	About 75–80% of the diet	The ideal base; wean seed eaters slowly
Vegetables and fruit	No more than 20–25%	Wash, chop small, serve in a separate dish
Seeds	Very small part	Use as treats or training rewards
Grit/gravel	Not needed	Can cause dangerous blockages
Supplements	Usually unnecessary	Only under avian vet guidance
Water	Fresh daily	Clean dishes daily

Remove fresh foods after a couple of hours so they do not spoil. VCA notes that high-water vegetables like iceberg lettuce offer little nutrition; dark leafy greens, carrots, broccoli, peppers and squash are better choices.

Which foods are dangerous for cockatiels?

VCA states that avocado and onion are potentially toxic and should never be offered. Also avoid apple seeds, chocolate, alcohol, caffeine (coffee, tea, soda) and processed snacks like chips and cookies. Birds are lactose-intolerant, so dairy only in very small amounts, if at all.

How do I convert a seed-eating cockatiel to pellets?

Go slowly. Offer pellets alongside the usual seed, gradually reducing seed over weeks. Some owners sprinkle pellets on fresh food or eat “with” the bird to encourage it. Watch droppings and appetite closely; a bird that stops eating can decline fast, so involve your avian vet.

How do cockatiels behave?

Bonding and daily time

Cockatiels are social and want to be with their flock. Plan for daily interaction: talking, gentle head scratches (most cockatiels love having their pin feathers scratched), training and supervised time on a play stand. A bored, lonely cockatiel may scream or pluck feathers.

Body language

• Crest straight up: alert or excited
• Crest relaxed, slightly back: calm
• Crest flat against the head with hissing: frightened or angry — give space
• Wings held out and heart-shaped posture with whistling: often a male displaying

What are night frights?

Cockatiels are prone to “night frights”: a sudden noise, car headlights or a shadow can make them panic and thrash in the dark, damaging feathers and wings. Use a dim night light, keep the cage away from windows and avoid overcrowding the cage with toys. If it happens, turn on a soft light and speak calmly until the bird settles.

Training

Teach “step up” first, using small treats, then target training (touching a chopstick tip). Keep sessions short. The same reward-based principles behind positive reinforcement training work beautifully with cockatiels.

Should I clip my cockatiel’s wings?

Merck’s grooming guidance says wing trimming should be done by a professional and warns that even a few millimeters of regrowth can let a bird fly. Flight is excellent exercise; many owners keep cockatiels flighted and bird-proof the room instead. Nails can be trimmed carefully when needed, and the beak rarely needs trimming if the bird has things to chew.

How do I know if my cockatiel is sick?

Merck’s list of illness signs in pet birds includes puffed-up feathers, sleeping more, less activity or vocalizing, sitting low on the perch or floor, weakness, trouble breathing or tail bobbing, changes in droppings, changes in eating or drinking, and vomiting. Because birds mask illness, any of these warrants a call to an avian vet the same day.

Female cockatiels kept alone can still lay eggs. Repeated laying drains calcium and can lead to egg binding — a straining hen sitting fluffed on the cage floor is an emergency. Ask your vet about ways to discourage chronic laying, such as limiting nest-like spaces and adjusting light hours.

Can cockatiels make people sick?

Pet birds can carry psittacosis without looking ill. The CDC’s prevention tips include washing hands after handling birds or cage items, dampening the cage before cleaning instead of dry sweeping, and cleaning food and water bowls daily. Tell your doctor you keep birds if you develop a fever and cough.

How much does a cockatiel cost to keep?

The purchase price is the smallest part of owning a cockatiel. Budget for a large cage and play stand, a steady supply of pellets and fresh produce, replacement perches and chew toys (cockatiels destroy soft wood and paper quickly, which is exactly what they should do), cage liners, and a wellness exam with an avian veterinarian at purchase and every year after. Set money aside for emergencies, too: bird medicine is specialized, and problems such as egg binding or respiratory infections need prompt care. Because Merck notes cockatiels can live up to 20 years, multiply those yearly costs over two decades when you decide.

One cockatiel or two?

A single hand-raised cockatiel often bonds strongly with its owner and can be very affectionate, but it then depends on you for nearly all of its social life. If the household is away for long workdays, a second cockatiel provides company. Expect two birds to bond more with each other than with you, and give them a cage that is meaningfully larger than the minimum Merck describes for one bird. Quarantine any new bird and have it checked by an avian vet before introducing the two, then introduce them gradually in neutral territory, such as side-by-side cages, before sharing a cage.

What should a daily cockatiel routine include?

1. Morning: fresh water, pellets and a small dish of chopped vegetables.
2. Midday: remove leftover fresh food before it spoils.
3. Afternoon or evening: at least an hour or two of supervised time out of the cage in a bird-safe room — windows closed, ceiling fans off, other pets elsewhere.
4. Night: change the cage liner, check droppings, and give 10–12 quiet hours of darkness with a dim night light if your bird is prone to night frights.
5. Weekly: scrub perches and dishes, rotate toys and deep-clean the cage.

Common cockatiel mistakes

• Covering the cage too tightly at night. Some cockatiels thrash in the dark during night frights. A small night light and partial cover often work better than total darkness.
• Keeping a seed-only diet. Convert gradually to a balanced pellet-based diet, as described above.
• Mistaking feather dust for illness. Cockatiels produce powder down. Regular bathing or misting helps, and an air purifier can help sensitive people in the home.
• Overlooking hormonal behavior. Long days, nest-like spaces and certain kinds of petting can trigger egg laying in hens. Ask an avian vet if a hen lays repeatedly.
• Skipping grooming checks. Look at nails and beak regularly, using Merck’s grooming guidance.
• Letting the bird out unsupervised. Ceiling fans, open doors and other pets cause many injuries.

Cockatiel care checklist

• Long rectangular cage plus play stand, in a lived-in room
• About 75–80% pellets, up to 20–25% fresh produce, seed as treats
• No avocado, onion, chocolate, caffeine or alcohol
• Daily social time and training
• Night light if your bird has night frights
• Avian vet checkups every year

Thinking about giving your birds more space to fly? See our aviary setup guide.