What Do Cockatiels Eat? Complete Cockatiel Diet Guide

What Do Cockatiels Eat in the Wild?

Cockatiels are native to Australia, where they inhabit open grasslands, scrublands, and woodlands. In the wild, their diet consists primarily of grass seeds and grain crops, supplemented with berries, fruits, leafy vegetation, and occasionally insects and their larvae during breeding season.

This natural variety is the blueprint for what we should offer pet cockatiels in captivity.

What Should Pet Cockatiels Eat?

A healthy cockatiel diet includes seeds, pellets, fresh vegetables, fruits, and appropriate treats. Variety is key — cockatiels fed only seeds develop nutritional deficiencies that shorten their lifespan significantly.

1. Pellets (50–60% of Diet)

Pellets should form the foundation of a cockatiel's diet. They're nutritionally complete and formulated to provide all essential vitamins and minerals. Many cockatiels resist pellets initially, especially if raised on seeds — transition gradually by mixing pellets into the seed mix and slowly increasing the ratio over several weeks.

2. Seeds (Up to 30–40% of Diet)

Seeds are a natural part of a cockatiel's diet and most birds love them. A quality seed mix provides variety and enrichment. Wild Harvest Daily Blend for Cockatiels, Lovebirds & Small Hookbills is a fortified blend designed specifically for hookbill birds like cockatiels.

Limit seeds to no more than 30–40% of the total diet. Seeds are high in fat and low in vitamin A, calcium, and other essential nutrients. An all-seed diet is one of the leading causes of early death in pet cockatiels.

3. Fresh Vegetables (Daily)

Fresh vegetables should be offered every day. The best vegetables for cockatiels include:

• Leafy greens: kale, spinach, romaine lettuce, Swiss chard, arugula
• Broccoli (raw or lightly steamed)
• Carrots (raw, grated or sliced)
• Bell peppers (all colors — excellent source of vitamin A and C)
• Corn (fresh or frozen, thawed)
• Peas (fresh or frozen, thawed)
• Zucchini and squash
• Sweet potato (cooked, no seasoning)

Kaytee Bird Greens Treats are a convenient supplement when fresh greens aren't available.

4. Fresh Fruits (2–3 Times Per Week)

Fruits are nutritious but high in sugar. Offer small amounts a few times per week. Safe fruits for cockatiels include:

• Apple (remove seeds)
• Banana
• Mango
• Papaya
• Berries (strawberries, blueberries, raspberries)
• Melon
• Grapes (cut in half)
• Pear (remove seeds)
• Kiwi

5. Treats

• Millet spray: Living World Millet Spray is a favorite treat for most cockatiels — use for training and bonding, but limit to a few times per week.
• Fruit blocks: Zoo Med Fruit Bird Banquet Blocks provide enrichment and variety.
• Greens treats: Kaytee Bird Greens add healthy variety.

6. Calcium and Minerals

Always provide a cuttlebone and mineral block. Calcium is especially critical for female cockatiels, who are prone to chronic egg-laying and can develop life-threatening calcium deficiency (hypocalcemia) without adequate supplementation.

7. Supplements

If your cockatiel is a picky eater or recovering from illness, a daily bird multivitamin supplement can help fill nutritional gaps. During molting, Wild Harvest Molting Supplement supports healthy feather regrowth.

Foods Cockatiels Cannot Eat

The following are toxic to cockatiels and must never be offered:

• ❌ Avocado — contains persin, highly toxic and potentially fatal
• ❌ Chocolate — toxic to all birds
• ❌ Onions and garlic — damage red blood cells
• ❌ Apple seeds and fruit pits — contain cyanide compounds
• ❌ Caffeine
• ❌ Alcohol
• ❌ Salty, processed, or fried foods
• ❌ Mushrooms
• ❌ Raw beans
• ❌ Dairy in large amounts

How Much Should a Cockatiel Eat Per Day?

• Pellets/seeds: 1.5–2 tablespoons per bird (available throughout the day)
• Fresh vegetables: 1–2 tablespoons per bird daily
• Fresh fruit: A small piece 2–3 times per week
• Treats: Small amounts only, a few times per week

Remove uneaten fresh food after 2–4 hours to prevent spoilage and bacterial growth.

Final Thoughts

Cockatiels that eat a varied, balanced diet live significantly longer and healthier lives than those kept on seeds alone. Introduce new foods gradually, be patient with picky eaters, and your cockatiel will thrive for 15–25 years with the right nutrition.