Cockatiel Respiratory Infection: Signs, Causes, and When to See an Avian Vet

Birds are masters at hiding illness — by the time a cockatiel shows obvious symptoms, they're often already quite sick. Respiratory infections are particularly dangerous because cockatiels have a unique respiratory system that makes even moderate infections progress quickly to life-threatening status. In 2026, avian vets consider respiratory signs in birds a same-day emergency until proven otherwise.

How Bird Breathing Differs from Mammals

Cockatiels and other birds have a highly efficient respiratory system that includes air sacs throughout the body cavity — not just lungs. This means respiratory infections don't stay localized to the lungs; they can spread into the air sacs (air sacculitis), abdomen, and bones. A bird that appears to be "just coughing a little" may already have significant systemic infection.

Signs of Respiratory Infection in Cockatiels

Mild to Moderate Signs

• Tail bobbing with each breath — compensatory effort to move air (see our article on cockatiel tail bobbing)
• Sneezing — occasional sneezing is normal, but frequent sneezing with discharge is not (see cockatiel sneezing)
• Nasal discharge — wet or crusty nostrils
• Clicking or wheezing sounds with breathing
• Voice changes — crackling, hoarse, or reduced vocalization
• Fluffed feathers while resting

Severe Signs — Emergency

• Open-mouth breathing or pumping tail at rest — always an emergency in birds
• Cyanotic (blue-tinged) skin around beak or feet
• Unresponsiveness or loss of balance
• Head tucked under wing and unable to rouse
• Complete silence from a usually vocal bird

Any bird showing open-mouth breathing at rest should be seen by an avian vet today — this is not a "wait and see" situation.

Common Causes

Bacterial Infections

Chlamydophila psittaci (the cause of psittacosis/parrot fever), Mycoplasma, E. coli, and Pseudomonas are among the bacteria commonly implicated. Psittacosis is also zoonotic — it can infect humans, causing flu-like symptoms. If you have a sick bird with respiratory signs, wash your hands thoroughly and inform your doctor if you develop fever or cough.

Viral Infections

Paramyxovirus (Newcastle disease), Pacheco's disease, and circovirus (PBFD) can all cause respiratory signs.

Fungal Infections

Aspergillosis is a fungal infection (Aspergillus species) that commonly affects birds kept in damp or moldy environments. Signs are often gradual and include tail bobbing, weight loss, and voice changes. It is difficult to treat and often requires long-term antifungal medication.

Environmental Irritants

Cigarette smoke, cooking fumes (especially PTFE/Teflon non-stick cookware vapors — these are rapidly fatal to birds), air fresheners, scented candles, and dusty environments can all cause respiratory inflammation. PTFE toxicity kills birds within minutes and is not an infection — it is a toxicological emergency.

What To Do

At home:

• Remove any potential environmental irritants (candles, air fresheners, cooking fumes)
• Keep the bird warm — a sick bird should be in a 85–90°F environment
• Do NOT mist or bathe a sick bird
• Keep the bird calm — stress worsens respiratory distress

At the vet: Diagnosis involves physical exam, blood work, cultures, and sometimes X-rays or endoscopy. Treatment depends on the cause: antibiotics (doxycycline for psittacosis), antifungals (itraconazole for aspergillosis), or supportive care.

How Voyage Can Help

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Frequently Asked Questions

Q: My cockatiel sneezes once or twice a day — is that normal? A: Occasional sneezing to clear dust from the nares is normal. Sneezing more than 2–3 times per day, or sneezing with discharge, is not normal and warrants a vet check.

Q: Can I catch anything from my cockatiel's respiratory infection? A: If the cause is Chlamydophila psittaci (psittacosis), yes — it's zoonotic. Symptoms in humans include flu-like illness with fever and cough. Always wash hands after handling sick birds and consult your doctor if you develop symptoms.

Q: How is bird respiratory infection treated? A: Treatment depends on the cause. Bacterial infections typically respond to doxycycline. Fungal infections (aspergillosis) require long-term antifungal medication. Viral infections are managed supportively.

Q: Why is non-stick cookware dangerous for birds? A: PTFE (Teflon and similar coatings) releases toxic fumes when overheated. Birds have extremely sensitive respiratory systems and can die within minutes of exposure. Use stainless steel, ceramic, or cast iron cookware in bird households.

This article is for informational purposes only and is not a substitute for professional veterinary advice. For exotic pets, always consult a vet with exotic animal experience.