BIRD CARE

Foods That Are Toxic to Pet Birds

Last updated: September 21, 2026 · Written by Sam, Founder

A pet bird eating fresh, bird-safe vegetables

Avocado, chocolate, caffeine, alcohol, salty snacks and xylitol are dangerous to pet birds, and non-stick pan fumes can kill fast. The sourced list.

Short answer: Never give a pet bird avocado, chocolate, coffee or other caffeine, alcohol, salty snacks, or anything sweetened with xylitol, and keep onions and fruit pits out of the food bowl. Pet Poison Helpline calls avocado “extremely poisonous” to caged birds. The deadliest household hazard isn’t a food at all: fumes from overheated non-stick (PTFE) cookware can kill a bird with no other warning.

Many foods that are safe for humans, or even for dogs and cats, are seriously dangerous for pet birds, and because birds are small with fast metabolisms, even a small amount of the wrong food can cause a rapid, serious reaction.

A budgie eating safe fresh vegetables from a dish — Sticking to foods known to be safe for your bird’s species avoids the guesswork.

What Foods Are Most Dangerous to Pet Birds?

Food	Why it’s dangerous	Source
Avocado	Persin, in the fruit, skin, pit and leaves, can cause breathing difficulty, heart damage and sudden death	ASPCA, Pet Poison Helpline
Chocolate	Theobromine and caffeine (methylxanthines) cause hyperactivity, tremors, heart rhythm problems and seizures	Frontiers in Veterinary Science review, 2025
Coffee, tea, energy drinks and caffeinated soda	Caffeine is a methylxanthine, with the same risks as chocolate	ASPCA; VCA
Alcohol	Causes incoordination and nervous-system depression	Frontiers review; ASPCA
Salty snacks (chips, pretzels, salted popcorn)	Excess salt can cause incoordination, breathing difficulty and death in birds	VCA; Frontiers review
Xylitol (sugar-free gum, candy, baked goods)	Suspected cause of fatal low blood sugar in wild birds	Journal of Avian Medicine and Surgery, 2017
Onions (and garlic, chives)	VCA lists onion as potentially toxic; Allium foods damage red blood cells in other species	VCA; ASPCA
Apple seeds and fruit pits	VCA advises removing apple seeds as potentially toxic	VCA

Avocado

A 2025 review of avian toxicoses in Frontiers in Veterinary Science identifies persin as the likely toxic agent in avocado and lists difficulty breathing, weakness, depression, loss of appetite and sudden death among the signs. For scale, Pet Poison Helpline cites a lethal dose of 3.5 g in an average 35 g budgerigar, about a tenth of its body weight. Sensitivity varies between birds, so there is no known safe amount.

Chocolate and caffeine

The same review explains that birds absorb methylxanthines quickly and, because of their small size and high metabolic rate, even small amounts can cause severe signs, including tremors, seizures and sudden death. It notes that the few reported cases of chocolate poisoning in birds were almost all fatal. According to ASPCA, the darker the chocolate or the higher the caffeine content, the greater the risk.

Alcohol, salt and xylitol

Alcohol depresses the nervous system and causes incoordination; reports of intoxicated wild and pet birds are summarized in the Frontiers review. Salt poisoning is documented in birds, from finches killed by road salt to house sparrows showing incoordination and death within 30 minutes of high doses. VCA’s feeding guidance says very salty foods, chocolate, caffeine and alcohol should never be fed to budgies. For xylitol, the evidence in birds is limited to a 2017 report of 29 wild Cape sugarbirds that died after drinking a homemade xylitol nectar, most showing signs within 15 minutes, with findings pointing to acute low blood sugar.

What Household Fumes Are Dangerous to Birds?

Birds have an extremely efficient respiratory system, which is why, as Pet Poison Helpline notes, canaries were once used in coal mines to detect gas. That efficiency also makes them vulnerable to fumes:

PTFE (Teflon) non-stick coatings: the Merck Veterinary Manual says PTFE poisoning occurs commonly in birds housed in or near kitchens; gas is released when coated pans overheat to 280°C (536°F), and other sources include irons, ironing-board covers, some self-cleaning ovens and some heat lamps. Often the only sign is sudden death.
VCA adds that the fumes are colorless and odorless, birds can be poisoned even in a different room, cases have been reported at recommended temperatures, and small birds such as budgies are the most sensitive.
Other inhalants: Merck and Pet Poison Helpline list tobacco smoke, some aerosols and air fresheners, scented candles, fresh paint and strong cleaning products.

To protect your bird, consider replacing PTFE-coated pans, never leave non-stick cookware heating unattended, run the extractor fan and keep the bird’s cage well away from the kitchen. Our bird cage setup guide covers safe placement.

Are There Foods That Seem Safe but Actually Aren’t?

Dairy products: VCA notes birds are lactose-intolerant, so dairy should be given only in very small amounts, if at all.
Processed and fried foods: VCA advises avoiding processed foods and anything cooked with butter or oil.
“Treat” seed products: VCA says honey sticks are simply seeds stuck together with sugar and honey and are not recommended by most avian vets; millet spray should be an occasional treat.
Metal objects mistaken for toys: lead and zinc poisoning are common in pet birds. Pet Poison Helpline lists lead paint, curtain weights and bells with lead clappers, and galvanized cages, mesh and toys as sources.

How Much of a Toxic Food Is “Too Much”?

Given birds’ small body size, even small amounts of a genuinely toxic food, like avocado or chocolate, can cause a serious reaction, and there isn’t a reliable “safe small amount.” That is different from foods that are nutritionally unbalanced rather than toxic, such as seeds, where the concern is proportion over time; see what pet birds should eat.

A parakeet eating fresh vegetables — Even a small amount of a genuinely toxic food can cause a rapid reaction in birds.

What Should You Do If Your Bird Eats Something on This List?

Remove any remaining food and keep the packaging.
Call your avian vet, ASPCA Animal Poison Control at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 immediately. Pet Poison Helpline is available 24/7 and charges a per-case fee.
For fume exposure, VCA advises moving the bird into fresh air right away.
Keep the bird warm and quiet in a covered carrier on the way to the vet, and don’t wait for symptoms.

Watch afterwards for the signs of illness in pet birds, such as fluffed feathers, weakness or labored breathing. If you also have dogs or cats, their danger lists differ; see human foods toxic to dogs.

What’s the Safest General Approach?

Stick to foods known to be safe for your bird’s species rather than assuming “healthy for humans” means “healthy for birds.” If you’re unsure about a specific food, check with your avian vet before offering it.

This article is for informational purposes only and does not replace guidance from your veterinarian.

Sources

Pet Poison Helpline — Top 5 Toxins for Companion Birds
ASPCA — People Foods to Avoid Feeding Your Pets
Vetere A, et al. — Avian toxicoses: a review, Frontiers in Veterinary Science, August 2025
Merck Veterinary Manual — Toxicoses of Pet Birds, May 2026
VCA Animal Hospitals — Teflon (Polytetrafluoroethylene) Poisoning in Birds, September 2026
VCA Animal Hospitals — Budgies - Feeding, October 2022
VCA Animal Hospitals — Cockatiels - Feeding, February 2025
Gardner BR, Mitchell EP — Acute, Fatal, Presumptive Xylitol Toxicosis in Cape Sugarbirds, Journal of Avian Medicine and Surgery, December 2017

FAQ

Is avocado really dangerous to birds?

Yes. Avocado contains persin, found in the fruit, skin, pit and leaves, and ASPCA lists cardiovascular damage and death in birds as the biggest concern. Pet Poison Helpline advises that caged birds should never be fed avocado because it can cause sudden death.

Can birds eat fruit seeds or pits?

Remove them. VCA advises taking apple seeds out before offering apple to a cockatiel because they may be toxic, and it is sensible to remove the pits of stone fruits such as cherries, peaches and apricots as well. The fruit flesh itself is fine in moderation.

Is Teflon (non-stick cookware) dangerous to birds?

Yes. When PTFE non-stick coatings overheat they release colorless, odorless fumes that can kill birds, often with sudden death as the only sign. Small birds such as budgies are the most sensitive, and VCA notes poisoning has been reported even at recommended cooking temperatures.

Can birds eat onions or garlic?

No. VCA lists onion as potentially toxic to birds, and ASPCA notes that onion, garlic and chives damage red blood cells in dogs and cats. Bird-specific research is limited, so the safe choice is to keep all onion-family foods out of your bird's diet.

Is xylitol toxic to birds?

It should be treated as dangerous. There are no controlled studies in pet parrots, but a veterinary case report described 29 wild Cape sugarbirds that died after drinking a homemade xylitol nectar, most showing signs within 15 minutes, from what appeared to be severe low blood sugar.

What should I do if my bird eats something toxic?

Call your avian vet, ASPCA Animal Poison Control at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 right away, with details of what and how much was eaten. Don't wait for symptoms; birds' small size means toxic effects can progress quickly.