Bird Health
Bird Respiratory Infections in the UK — Signs & Avian Vet Care
Published Last updated 3 min read
Quick answer
Bird respiratory disease shows as tail bobbing, sneezing, discharge, wheezing or open-mouth breathing. Birds mask illness until they are critically unwell — contact an avian vet the same day. Improve ventilation, remove Teflon fumes and dusty bedding while awaiting care.
Why birds hide respiratory disease
In the wild, sick birds are predated quickly — so pet birds often appear normal until breathing is severely compromised. By the time owners notice tail bobbing, disease may be advanced.
According to the RSPCA, register with an avian-experienced vet before illness strikes. Same-day assessment saves lives.
Common signs
| Sign | Description |
|---|---|
| Tail bobbing | Tail moves up and down with each breath — classic sign of breathing effort |
| Open-mouth breathing | Never normal at rest in small birds |
| Sneezing or coughing | Repeated with discharge |
| Nasal or ocular discharge | Wet feathers around nares or eyes |
| Wheezing or clicking | Audible breathing sounds |
| Fluffed feathers | Hunched, inactive, reduced appetite |
| Voice change | Quieter or altered vocalisation |
Common causes
- Infectious — bacteria (e.g. Mycoplasma, Chlamydia), fungi (Aspergillus), viruses
- Environmental — dusty seed hulls, poor cage hygiene, ammonia from droppings
- Toxins — Teflon/non-stick pan fumes (fatal at low temperatures), cigarette smoke, aerosols
- Nutritional — vitamin A deficiency from seed-only diets weakens respiratory lining
- Stress and drafts — poor immunity in cold, damp or poorly ventilated cages
Position cages away from kitchens where non-stick cookware is used. According to avian welfare guidance, Teflon fumes are a leading cause of sudden death in pet birds.
Psittacosis — important for UK owners
Psittacosis is a notifiable zoonotic infection that can pass from birds to humans, causing flu-like illness or pneumonia. Suspected cases require veterinary diagnosis, treatment and hygiene advice.
Tell your vet if you develop fever, headache or breathing problems after contact with a sick bird.
What to do before the vet
- Call an avian vet the same day
- Keep the bird warm — hospital cage or heated area
- Improve ventilation without creating draughts directly on the bird
- Remove dusty bedding — switch to paper-based substrate temporarily
- Isolate from other birds if you have a flock
- Do not use human cold remedies or antibiotics without veterinary prescription
Veterinary treatment
Diagnosis may involve physical examination, swabs, blood tests or radiographs. Treatment depends on cause — antibiotics for bacterial infection, antifungals for Aspergillus, environmental changes, and supportive fluids or nebulisation.
Recovery may take weeks. Complete the full prescribed course even if the bird looks better.
Prevention
- Pellet-based diet with fresh vegetables — not seed alone
- Daily cage cleaning — remove droppings and old food
- Low-dust bedding — avoid fine sawdust
- No Teflon in the home near birds; ventilate when cooking
- Quarantine new birds for 30 days before introducing to existing pets
- Annual avian health checks
When to call the vet
Same day for tail bobbing, open-mouth breathing, discharge, or any breathing change. Respiratory emergencies deteriorate within hours.
Sources & further reading
Facts in this guide are rewritten in plain English from publicly available UK advice. We name the organisation where a specific point comes from their guidance. Links below go to the original pages — use them to read the source material directly.
PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Guidance checked against sources listed below (last updated 2026-06-25).
Related guides
Frequently Asked Questions
- What are signs of a respiratory infection in birds?
- Tail bobbing, open-mouth breathing, sneezing, nasal discharge, wheezing, reduced activity and fluffed feathers. Birds hide illness — seek same-day avian vet care.
- Can bird respiratory disease spread to humans?
- Psittacosis (Chlamydia psittaci) is a zoonotic disease that can affect humans. Your vet can diagnose and advise on treatment and hygiene. Always wash hands after handling sick birds.
- What causes respiratory problems in pet birds?
- Bacterial or fungal infections, vitamin A deficiency, dusty bedding, poor ventilation, Teflon fumes, cigarette smoke, and drafts. Underlying disease weakens immunity.