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Mistletoe Poisoning in Parrots: Signs, Risks, and What to Do

PawAI Lab
5 min read

Mistletoe poisoning in parrots results from phoratoxins and viscotoxins, especially in the berries, producing effects that can affect the digestive, nervous, and respiratory systems.

Updated: 2026-07-31 Reading time: 6 minutes

Quick Answer

Mistletoe poisoning in parrots is linked to phoratoxins and viscotoxins, especially in the berries. Mistletoe contains toxic proteins that can affect the heart and digestive system and may be life-threatening to birds. The berries are particularly dangerous. Severity relates to the form and amount of the item and the parrot's body size. Contact an avian veterinarian or an animal poison-control service immediately. Do not induce vomiting or give home remedies, because birds can easily inhale vomit.

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Safety Verdict

Mistletoe is considered toxic to parrots. Birds are small and often more sensitive than mammals to many substances, so caution is warranted even when exposure seems minor. As a dose- and form-dependent exposure, both the likelihood and severity of signs tend to increase with the amount absorbed relative to body weight.

What It Is

Mistletoe is a parasitic plant with berries, used in winter decorations. Exposure in the home usually involves mistletoe sprigs and berries in winter decorations.

Why It May Be Harmful

The toxic principle is phoratoxins and viscotoxins, especially in the berries. Mistletoe contains toxic proteins that can affect the heart and digestive system and may be life-threatening to birds. The berries are particularly dangerous.

Signs to Watch For

Signs of mistletoe poisoning in parrots may include:

  • vomiting and diarrhea
  • weakness
  • irregular heart rate
  • tremors or seizures
  • collapse

Because birds often hide illness until it is advanced, signs can appear suddenly or progress quickly, and the absence of early signs does not necessarily rule out risk.

What to Do

Contact an avian veterinarian or an animal poison-control service immediately. Do not induce vomiting or give home remedies, because birds can easily inhale vomit. Do not attempt to induce vomiting or give home remedies unless a veterinarian has specifically directed you to.

  1. Remove access to any remaining mistletoe or packaging right away.
  2. Contact an avian veterinarian or an animal poison-control service immediately, even if the parrot seems fine, because signs can be delayed.
  3. Do not induce vomiting or give milk, food, oil, salt, activated charcoal, hydrogen peroxide, or any medication unless a veterinarian or poison-control professional directly instructs you to. Birds can easily inhale vomit, so home treatment is especially dangerous.
  4. Keep the bird warm, calm, and quiet, and watch its breathing and droppings.
  5. Gather the details below so a veterinarian can assess the situation quickly.

Have this information ready when you call:

  • Parrot details: species, approximate age, and body weight.
  • The item involved and, if possible, the product name, label, or a sample.
  • Estimated amount eaten or the duration of exposure.
  • When exposure may have happened and any signs already seen.
  • Any existing health conditions or medications.

Differences That May Affect Risk

Risk can vary with the parrot's species, body size, age, and health, and with the form and amount of the item. A smaller parrot generally faces higher relative exposure than a larger bird for the same amount.

When to Contact a Veterinarian

Contact an avian veterinarian or an animal poison-control service after any known mistletoe exposure. Seek emergency care immediately if you notice any of the following:

  • Difficulty breathing, open-mouth breathing, or tail bobbing with each breath
  • Seizures, tremors, or twitching
  • Collapse, inability to perch, or unresponsiveness
  • Sudden weakness or disorientation
  • Repeated vomiting or signs of pain

For US owners, the ASPCA Animal Poison Control Center (888-426-4435) and Pet Poison Helpline (855-764-7661) are available, and charges may apply. In the UK, contact your nearest veterinary emergency clinic or the Animal PoisonLine (01202 509000). In Canada, Australia, and Europe, contact an avian veterinarian or the nearest emergency clinic. Because birds hide illness until it is advanced, do not wait for signs to worsen before calling an avian veterinarian.

FAQ

How is mistletoe poisoning in parrots treated?

Treatment is supportive and depends on severity; it may include decontamination when appropriate, fluids, medications to control seizures or vomiting, and monitoring. A veterinarian decides the approach based on the exposure and the signs present. Do not treat at home without veterinary direction.

How long do the effects of mistletoe poisoning last?

The duration depends on the amount, the form, and how quickly care begins. Signs can develop over hours and may persist, so monitoring over an extended period is sometimes recommended. An avian veterinarian can advise on follow-up.

Are all forms of mistletoe equally dangerous?

The form and concentration of mistletoe can change the level of risk. A veterinarian or poison-control service can assess the specific product involved.

TOXICITY CHECKER

Not sure whether another food, plant, fume, or household item may be risky for your parrot? Get general, species-aware safety information in seconds.

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This tool provides general safety information and does not replace veterinary advice in an emergency.

Sources

Disclaimer

This article and the PawAI Toxicity Checker tool provide general safety information and do not replace examination, diagnosis, or treatment by a licensed avian veterinarian. If your parrot may have ingested a toxic substance, contact an avian veterinarian, emergency clinic, or animal poison control immediately.

Written by PawAI Lab