What to Feed a Cockatiel: Pellets, Seeds, and Daily Portions

What Should a Cockatiel Eat Every Day?

A healthy cockatiel diet is built on formulated pellets (about 65% of the daily food), fresh vegetables and leafy greens (about 25%), and a small measure of seed (about 10%), with fruit and other extras offered occasionally in place of part of a portion rather than piled on top. A typical adult cockatiel eats only about 1.5 to 2 tablespoons of food per day — roughly 4.5 to 6 teaspoons — so every bite counts. In practice, that day's ration is about 3 to 4 teaspoons of pellets, 1 to 1.5 teaspoons of chopped vegetables, and no more than half a teaspoon of seed.

That answer surprises many new owners, because pet stores still sell "cockatiel food" that is almost entirely seed. Wild cockatiels do forage for grass seeds across the Australian outback — but they also burn enormous energy flying miles each day and eat a far wider range of plant matter than a seed mix provides. A pet cockatiel on an all-seed diet is getting the avian equivalent of living on french fries: filling, tasty, and slowly harmful.

This guide covers what to feed, how much, what's safe, what's dangerous, and how to convert a stubborn seed-eater to something better. It is general education, not individualized veterinary advice: portions here describe a typical healthy adult cockatiel, and an avian vet who has weighed and examined your bird is the right person to adjust them for age, weight, breeding condition, or illness. For the broader principles that apply across all species, see our complete parrot diet guide.

The Best Food for Cockatiels at a Glance

Those three daily categories are the whole ration — they add up to 100% of what goes in the bowl on an ordinary day. Fruit and extras are not a fourth helping; on the days you offer them, they take the place of part of the seed or vegetable portion.

If you remember nothing else: pellets and vegetables are the meal; seeds and fruit are the garnish.

Pellets: The Foundation of a Cockatiel Diet

Pellets are formulated to deliver balanced nutrition in every bite — protein, vitamins (especially vitamin A, which seed diets lack), and minerals like calcium. Unlike a seed mix, a cockatiel can't pick out its favorites and leave the rest, which is exactly the problem pellets solve.

Choosing a pellet

• Size matters. Pick a pellet sized for cockatiels or "small parrots." Oversized pellets get ignored; crumbles work well for reluctant birds.
• Skip the dyes. Plain, naturally colored pellets are the safer default. Brightly dyed pieces add nothing nutritionally, and some birds eat only their favorite colors.
• Check the first ingredients. A quality pellet lists grains, legumes, or vegetables up front rather than sugar or excessive fillers.
• Stay consistent. Once your bird accepts a brand, stick with it. Birds are neophobic — food changes are stressful, so save switches for when they're genuinely needed.

How much pellet per day?

Offer 3 to 4 teaspoons of pellets daily — that is 1 to 1⅓ tablespoons — in a clean dish. Most cockatiels self-regulate well on pellets, so a little left over at day's end is fine. Discard uneaten pellets daily and wash the bowl; bacteria grow fast in food dishes.

If your bird empties the pellet dish every day and still seems hungry, that is a conversation for your avian vet rather than a reason to top the bowl up with seed.

Seeds: Why "Cockatiel Food" Isn't a Complete Diet

Seeds are not evil — they're incomplete, and they're incomplete in two different ways that often get lumped together:

• Oil seeds like sunflower and safflower are very high in fat. Sunflower kernels run roughly 50 grams of fat per 100 grams. Fed freely, they are the fastest route to obesity and fatty liver disease.
• Millet and canary seed are not fatty — they're empty. Proso millet carries only about 4 grams of fat per 100 grams, comparable to a formulated pellet. Its problem is that it is essentially a carbohydrate filler: low in vitamin A, low in calcium, and short on quality protein.

Neither type delivers a balanced diet, which is why a cockatiel that free-feeds on seed mix will typically:

• Pick out the fattiest, tastiest seeds and leave the rest of the mix untouched
• Develop vitamin A deficiency over months to years, weakening the respiratory tract and immune system
• Risk fatty liver disease and obesity, which are among the most common diet-related problems avian vets see in cockatiels

The practical takeaway: seed belongs in your training pouch, not in a free-fed bowl. Half a teaspoon of seed a day — ideally handed over as a reward for stepping up or coming when called — keeps seeds as the high-value treat they should be. Spray millet is the classic cockatiel favorite and works well for taming sessions precisely because it is low in fat: a bird can earn several small pieces across a session without blowing its calorie budget. It still counts toward the day's seed allowance.

For a deeper look at the evidence and the trade-offs, our comparison of pellets vs seeds for parrots breaks it down species by species.

Converting a seed junkie to pellets

Never simply swap the bowls overnight — a cockatiel can refuse unfamiliar food long enough to genuinely endanger itself. Small birds have fast metabolisms and little reserve. Instead:

1. Mix gradually. Start with mostly seed and a scattering of pellets, then shift the ratio over several weeks.
2. Serve pellets in the morning, when your bird is hungriest, and offer the seed portion later in the day.
3. Eat with your bird. Cockatiels are flock eaters. Pretend to nibble a pellet enthusiastically (or crush a few over their familiar food) — modeling works surprisingly well.
4. Try crumbles or moistened pellets if whole pellets get ignored.
5. Weigh your bird. A small gram scale is the single best tool during a diet change. Steady weight means the transition is working; a falling weight means stop shrinking the seed portion and call an avian vet.

Patience wins. Some cockatiels convert in two weeks; others take months. Both outcomes are normal.

Vegetables and Greens: The Daily Fresh Portion

Vegetables supply the vitamin A, fiber, and micronutrient variety that pellets alone can't fully replicate. Aim for 1 to 1.5 teaspoons of chopped fresh vegetables every day — about half a tablespoon, chopped fine or offered in strips to shred. That is the portion that counts toward the daily ration; because birds shred, fling, and waste a good deal of fresh food, it is fine to clip a larger leaf or a longer strip to the bars and let your cockatiel work at it.

Best vegetables for cockatiels

• Dark leafy greens: kale, Swiss chard, dandelion greens, romaine (skip iceberg — it's mostly water)
• Orange vegetables: carrot, cooked sweet potato, cooked winter squash — all rich in beta-carotene, which birds convert to vitamin A
• Broccoli and cauliflower: florets and chopped stems
• Bell peppers: any color, seeds and all — the seeds are safe and many birds love them
• Peas, corn, and green beans: fresh or thawed frozen
• Zucchini and cucumber: hydrating and gentle for beginners

Wash everything, and serve raw where possible (sweet potato and squash should be cooked). Remove fresh food after a few hours — sooner in warm weather — before it spoils.

If your cockatiel ignores vegetables: keep offering anyway. Birds often need to see a new food many times before trying it. Clip greens near a favorite perch, weave them through cage bars, or chop vegetables into a "chop" mix so favorites and new foods get eaten together.

Fruit: A Treat, Not a Staple

Fruit is safe and enjoyable in moderation, but it's essentially nature's candy — high in sugar relative to a cockatiel's tiny daily intake. Offer about half a teaspoon of chopped fruit, two or three times a week — a piece roughly the size of a single grape — and take it out of that day's seed or vegetable portion rather than adding it on top.

Good choices include apple (always remove the seeds), banana, berries, melon, mango, and grapes in small amounts. Always remove pits from stone fruits like cherries, peaches, and apricots — the pits and seeds contain compounds that release cyanide.

Our guide to what fruits parrots can eat covers the full safe list and preparation details.

Cockatiel Safe Foods: The Everyday Yes List

If you want one short list to keep on the fridge, these are the cockatiel safe foods you can offer without hesitation, in the amounts described above:

• Plain formulated pellets sized for cockatiels or small parrots
• Fresh vegetables and dark leafy greens, raw or plainly cooked, with nothing added
• A measured pinch of plain seed mix or spray millet
• Small pieces of fresh fruit with pits and apple seeds removed
• Plain cooked whole grains and thoroughly cooked legumes
• A little plain egg, and a cuttlebone or mineral block for calcium

The common thread is that everything on that list is plain: no salt, no sugar, no butter or oil, no seasoning. If a food has been prepared for human taste, it is not on the list.

Extras: Grains, Protein, and Calcium

A few additions round out the diet nicely, offered a few times a week in place of part of the seed or vegetable portion:

• Cooked whole grains: brown rice, quinoa, oats, whole-grain pasta — plain, unsalted, cooled
• Cooked legumes: lentils, chickpeas, and beans (thoroughly cooked, never raw)
• Egg: a small amount of plain scrambled or hard-boiled egg once a week or so is a useful protein boost, especially during molt
• Cuttlebone or mineral block: clip one in the cage for calcium and beak maintenance; hens that lay eggs need calcium support in particular
• Sprouted seeds: sprouting transforms fatty seeds into a living, vitamin-rich food most cockatiels love

Skip grit. Unlike pigeons and doves, cockatiels hull their seeds before swallowing and do not need grit; overeating it can cause impaction.

Foods That Can Kill a Cockatiel

This list is short, and it is non-negotiable. Never feed a cockatiel:

• Avocado — toxic to parrots and can cause fatal heart damage; no amount is safe
• Chocolate — theobromine and caffeine are both toxic to birds
• Caffeine — coffee, tea, energy drinks, soda
• Alcohol — in any quantity
• Fruit pits and apple seeds — cyanide-releasing compounds
• Onion and garlic — can damage red blood cells
• Raw dry beans — contain toxins destroyed only by thorough cooking
• Salty, sugary, or fried human food — a bird's tiny body cannot process a "small" salty snack the way ours can
• Anything with xylitol — the sweetener is dangerous to many animals; keep it away from birds entirely

One related hazard that isn't food but belongs in every feeding article: PTFE (Teflon) and other nonstick coatings emit fumes when overheated that can kill a bird within minutes — often with no warning and no chance of treatment. If your cockatiel lives anywhere near the kitchen, replace nonstick cookware with stainless steel, cast iron, or ceramic, and never run a self-cleaning oven cycle with a bird in the house.

If you think your bird has eaten something on this list, or has been in a room with nonstick fumes, call an avian vet immediately rather than waiting to see what happens.

The complete never-feed list, with symptoms and emergency steps, is in our guide to foods toxic to parrots.

Water and Feeding Routine

Fresh, clean water every single day, no exceptions — twice daily if your bird likes to dunk food or bathe in the bowl. Wash water dishes with hot soapy water daily; the slippery biofilm that forms inside is bacterial growth.

A simple daily routine looks like this:

• Morning: 3 to 4 teaspoons of fresh pellets, 1 to 1.5 teaspoons of chopped vegetables, fresh water
• Midday: remove uneaten fresh food after a few hours
• Evening: up to half a teaspoon of seed (or save it for training), refresh water, quick bowl check

That is the full day's food. If you hand out seed as training rewards during the day, subtract it from the evening portion instead of adding to it.

How Diet Shapes a Cockatiel's Lifespan

Diet is one of the biggest factors an owner controls in how long a cockatiel lives, alongside veterinary care, safe housing, and keeping the bird away from household hazards. Seed-fed cockatiels frequently develop nutritional disease in middle age, while well-fed birds commonly live 15 to 25 years, with some exceeding that. Individual outcomes vary widely, and no diet guarantees a number.

Watch your bird's droppings, weight, and energy as you refine the diet. Any change — fewer droppings, unusual color, fluffed feathers, tail-bobbing, or appetite loss — warrants a prompt call to an avian vet. Birds hide illness until they can't, so early action matters. Our guide to the signs of a sick parrot covers what to watch for in more detail.

Cockatiel Feeding Questions, Answered Quickly

Can cockatiels eat bread? Small bits of plain whole-grain bread are safe occasionally, but it's empty filler — skip it in favor of vegetables.

Can cockatiels eat peanut butter? A rare tiny smear of unsalted, xylitol-free peanut butter is generally tolerated, but it's fatty and sticky; there are better treats.

Do cockatiels need vitamin supplements? A bird eating mostly quality pellets plus vegetables generally does not. Never add supplements to water or food without avian-vet guidance — over-supplementing can cause its own problems.

How long can a cockatiel go without food? Not long. Small parrots have fast metabolisms, and a cockatiel refusing food for even a day is a concern. Never "starve them into" accepting new food.

Feed the plate you'd want your bird to live on for the next two decades — pellets as the meal, vegetables every day, seeds as the reward, and the toxic list taped inside a kitchen cupboard where everyone in the house can see it.