How to Tell If a Pet Bird Is Sick: Emergency Symptoms and Warning Signs

Pet birds often hide signs of illness until they are struggling to cope. A budgie may stop singing, a cockatiel may sit quietly with fluffed feathers, or a parrot that usually climbs around its cage may suddenly remain on one perch.

These changes can be easy to miss, especially when the bird continues to eat a little or becomes alert as someone approaches.

You can tell that a pet bird may be sick by looking for changes in its normal behaviour, breathing, posture, appetite, droppings and appearance. Persistent fluffing, daytime sleepiness, reduced activity, weak gripping, unusual droppings and nasal discharge all warrant attention.

Some signs require immediate veterinary care.

Contact an emergency veterinary service immediately if your bird is struggling to breathe, collapsed, unresponsive, unable to perch, having seizures or bleeding continuously. Avoid unnecessary handling, keep the surroundings quiet and follow the veterinary team’s transport instructions.

This guide explains what owners can observe safely, how to distinguish common warning signs from normal behaviour, and when to seek help. It covers companion birds such as budgies, cockatiels, lovebirds, conures, African grey parrots, macaws, canaries and finches.

Emergency symptoms in pet birds: when to act immediately

Birds may deteriorate rapidly after noticeable signs of illness appear. Do not wait for several symptoms to develop before seeking help.

The Merck Veterinary Manual’s emergency guidance identifies a bird that is weak, unresponsive or lying on the cage bottom as an emergency.

The following signs are particularly concerning.

Emergency warning sign	What an owner may notice	Immediate priority
Difficulty breathing	Open-mouth breathing at rest, exaggerated tail bobbing, pronounced breathing effort	Emergency veterinary assessment; minimise handling
Collapse or severe weakness	Bird lying on cage floor, unable to perch or remain upright	Immediate veterinary care
Persistent bleeding	Fresh blood continuing from a feather, foot, beak or injury	Contact emergency vet; avoid disturbing existing clots
Seizures or severe loss of balance	Uncontrolled movements, falling, inability to coordinate	Prevent further injury and seek emergency care
Suspected toxic exposure	Breathing difficulty, sudden weakness or collapse after exposure to fumes or hazardous substances	Remove ongoing exposure if safe; seek emergency veterinary care
Severe straining or suspected reproductive emergency	Repeated straining, profound weakness, swollen abdomen or inability to perch	Urgent veterinary evaluation
Major injury or predator attack	Significant wound, suspected fracture, crushing injury or cat bite	Immediate veterinary assessment, even if injuries seem small

These are examples, not a complete diagnostic checklist. An abnormal sign may be urgent even when it does not fit neatly into a table.

If your bird is struggling to breathe, don’t restrain it repeatedly to inspect the mouth, chest or nostrils. The handling itself may worsen respiratory distress.

1. Why is my bird sitting at the bottom of the cage fluffed up?

A bird sitting on the cage floor with fluffed feathers is one of the most recognisable signs of possible illness in normally perching companion birds.

However, context matters.

When fluffed feathers are normal

Birds may briefly fluff their feathers when resting, preening or adjusting their body temperature.

A cockatiel that fluffs up, settles briefly and then resumes eating, climbing and vocalising may simply be resting.

Likewise, some species naturally spend time on the ground. Young birds that have not yet developed normal adult perching behaviour may also use the cage floor differently.

A single photograph cannot reliably distinguish rest from illness.

When fluffing suggests something is wrong

Be concerned when the bird remains fluffed for prolonged periods and also shows signs such as:

• Sleeping more than usual during the day.
• Remaining motionless with its eyes closed.
• Sitting unusually low on a perch.
• Losing interest in toys, food or interaction.
• Gripping perches weakly.
• Allowing unusual approaches without responding normally.
• Sitting at the cage bottom when it would ordinarily perch.
• Having drooping wings, poor balance or obvious weakness.

A bird that has become too weak to perch requires emergency care.

The Merck Veterinary Manual’s guide to illness in pet birds identifies persistent fluffing, sleepiness, reduced activity and changes in perching as common illness indicators.

Don’t assume the bird is merely cold or tired. A quiet, fluffed-up bird may be conserving energy because it is unwell.

2. Signs of respiratory infection and breathing problems

Breathing changes are among the most important signs to recognise because birds have highly specialised respiratory systems and may become distressed during handling.

A healthy bird at rest generally breathes quietly without obvious strain.

What does abnormal breathing look like?

Watch for:

• Open-beak breathing when the bird has not just exercised.
• Noticeable effort with every breath.
• Pronounced up-and-down tail movement associated with breathing.
• Wheezing, clicking or other unusual respiratory noises.
• Persistent coughing or sneezing with other symptoms.
• Abnormal nasal discharge.
• Breathing difficulty accompanied by weakness or poor balance.

Subtle movement of the body or tail can occur normally. The concern is a persistent, exaggerated breathing effort rather than any visible tail movement whatsoever.

According to VCA Animal Hospitals’ respiratory disease guidance, affected birds may show wheezing, nasal discharge, altered vocalisation, tail bobbing or difficulty breathing.

Can respiratory signs mean something other than infection?

Yes.

Bacteria, fungi, viruses and parasites can affect the respiratory tract, but environmental irritants, toxic fumes, heart problems and other diseases may produce overlapping signs.

Open-mouth breathing is therefore not a reliable way to diagnose a bacterial infection.

Some birds also breathe faster after exertion or excitement. However, persistent breathing difficulty at rest should never be dismissed as ordinary exercise.

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What should you do?

If your bird is breathing with obvious difficulty, contact an emergency veterinary service immediately.

Reduce noise and unnecessary activity. Avoid repeatedly removing the bird from its enclosure or holding it tightly.

Do not attempt home steam treatments, essential-oil inhalation, human inhalers or unprescribed antibiotics.

A veterinary team may need to provide oxygen and stabilisation before attempting a detailed examination.

3. How to check whether bird droppings are healthy

Droppings provide useful clues because you can examine them without catching or restraining your bird.

Most companion-bird droppings contain three parts:

1. Faeces: The digestive waste, often green or brown and usually formed.
2. Urates: The pale or white semi-solid waste produced by the urinary system.
3. Urine: The clear liquid component.

The proportions and colours can change with species, food intake, hydration and health.

For example, coloured commercial pellets may affect faecal colour, while foods with a high water content can temporarily increase liquid urine.

The most useful comparison is with your individual bird’s normal droppings.

Diarrhoea versus increased urine

These are not the same problem.

With diarrhoea, the faecal component becomes unusually loose or unformed.

With increased urine production, called polyuria, there is more clear liquid around the droppings while the faecal portion may remain formed.

Owners sometimes confuse polyuria with diarrhoea because both can make cage paper look wet.

The distinction matters because the possible causes and veterinary investigations differ.

Read VCA’s explanation of abnormal bird droppings.

Dropping changes that may indicate illness

Dropping change	What it can indicate	Appropriate response
More liquid than usual	Dietary influence, increased urine production or illness	Observe other changes and contact a vet if unexplained or persistent
Unformed faeces	Possible intestinal or systemic problem	Seek veterinary advice
Yellow or green-stained urates	Possible medical abnormality, including liver disease	Veterinary assessment; colour alone cannot diagnose the cause
Red material or obvious blood	Possible bleeding or other abnormality	Prompt veterinary attention
Black, tarry faeces	Possible digested blood	Urgent veterinary assessment
Undigested seeds	Possible digestive abnormality	Arrange veterinary evaluation
Markedly fewer droppings	May reflect reduced food intake or impaired digestion	Prompt veterinary care, especially with lethargy or poor appetite

Do not assume green droppings automatically mean liver disease. The faeces and urates must be assessed separately, and diet and other symptoms matter.

Likewise, red-coloured food can sometimes affect appearance, but suspected blood should not be dismissed without veterinary advice.

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How to collect a useful dropping sample

Place clean, plain paper beneath the area where your bird usually passes droppings.

If you notice a significant change, take a clear photograph and record when it appeared.

Note recent dietary changes, reduced food intake or any accompanying symptoms.

If the veterinary team requests a sample, ask how it should be collected and stored.

Do not delay treatment in an emergency to collect droppings.

4. Changes in appetite and drinking

Appetite changes may appear before more dramatic signs.

A bird that normally eats eagerly may begin leaving food untouched, eating slowly or avoiding favourite foods.

Seed-fed birds can be particularly difficult to monitor by looking at their bowls alone. Empty husks may make a bowl appear full even when little edible food remains.

Observe your bird actually eating.

Warning signs include:

• Reduced interest in food.
• Difficulty picking up or swallowing food.
• Regurgitation or vomiting that differs from normal behaviour.
• Unexplained changes in drinking.
• Visible weakness when approaching food.
• Weight loss or reduced body condition.

Some parrots regurgitate food during courtship-related behaviour. Vomiting associated with illness can look different, but owners should not attempt to diagnose the cause from appearance alone.

If your bird has stopped eating or is becoming weak, contact an avian veterinarian promptly. Small species and young birds may be particularly vulnerable to deterioration when food intake falls.

Do not force-feed a weak bird or syringe water into its mouth unless a veterinary professional has instructed you how and when to do so. Incorrect feeding can cause aspiration.

5. Unusual sleeping, silence and behavioural changes

You probably know your bird’s normal routine better than anyone else.

A budgie that chats throughout the morning may suddenly become quiet. A parrot that usually approaches family members may stay withdrawn. A canary may sing less or spend more time resting.

None of these changes establishes a diagnosis, but they can be early reasons to investigate.

Why daytime sleeping matters

Birds normally have periods of rest. The concern is a noticeable departure from the usual pattern, particularly when paired with persistent fluffing or reduced responsiveness.

Watch for a bird sleeping repeatedly when it would normally be active, remaining with both eyes closed for unusual periods or becoming difficult to engage.

Sudden changes in temperament

An unwell bird may become unusually irritable, withdrawn or apparently tame.

A bird that normally avoids hands but suddenly permits prolonged touching may be too weak to respond normally.

Do not interpret every sudden behavioural change as a training problem.

If there is no obvious environmental explanation, seek veterinary advice.

The Association of Avian Veterinarians provides owner resources covering both normal behaviour and signs of illness.

6. Nasal discharge, blocked nostrils and crusty beaks

A healthy bird’s nostrils, also called nares, are generally clear and free from persistent discharge.

Some species have different normal appearances around the cere, the tissue surrounding the nostrils, so owners should learn what is normal for their particular bird.

Possible warning signs include persistent sneezing, discharge around one or both nostrils, dried material obstructing the openings, swelling around the face and unusual breathing noises.

Does sneezing mean my bird has an infection?

Not always.

A bird may occasionally sneeze after exposure to dust or during normal feather care.

Repeated sneezing, especially with discharge, watery eyes or breathing changes, deserves examination.

Possible causes include infection, foreign material, environmental irritation and other medical problems.

Should you clean blocked nostrils yourself?

Do not insert cotton buds, tweezers, syringes or other objects into a bird’s nostrils.

Do not attempt to flush them with homemade solutions.

Improper cleaning may injure delicate tissues or worsen respiratory problems.

A bird with obstructed nostrils or persistent discharge should be examined by an avian veterinarian.

Crusty beak deposits, abnormal cere changes or overgrowth may also require investigation rather than home filing or scraping.

7. Feather changes and poor grooming

Feathers are not a complete health test, but changes in their condition can provide valuable information.

A healthy bird normally spends time preening and maintaining its plumage.

A bird that stops preening, remains persistently ruffled or develops unusually dirty feathers may be unwell or unable to groom properly.

Other abnormalities worth investigating include:

• Persistent feather breakage.
• Bald patches unrelated to expected feather development.
• Blood on feathers or skin.
• Heavy soiling around the vent.
• New feather damage accompanied by scratching or distress.
• Changes in feather condition together with appetite or behavioural changes.

Moulting is a normal process. However, illness, nutritional problems, parasites and other conditions can also affect plumage.

Do not assume that every feather abnormality is caused by mites, stress or vitamin deficiency.

Avoid applying insecticides, oils, medicated sprays or supplements unless recommended by a qualified professional.

8. Balance problems, weak feet and neurological symptoms

An inability to grip a perch, sudden loss of coordination or repeated falling can indicate a serious problem.

Some birds may show tremors, head tilting, abnormal movements or seizures.

These symptoms can have several causes, including injury, toxic exposure and neurological or systemic disease.

Do not attempt to decide the cause by watching a short video online.

A bird that is having seizures, collapses or cannot remain upright requires emergency veterinary assessment.

Keep handling to the minimum needed for safe transport. Ask the veterinary team how to prepare an appropriate carrier that reduces the risk of further injury.

9. Common diseases in pet birds and their symptoms

Several illnesses can produce overlapping symptoms. Owners should understand possible categories of disease without using them to make a home diagnosis.

Disease or problem	Possible symptoms	Why veterinary diagnosis matters
Respiratory infections	Sneezing, discharge, wheezing, breathing effort	Different organisms require different investigations and treatment
Aspergillosis	Respiratory problems, weakness, weight changes	Fungal disease can be difficult to diagnose
Avian gastric yeast infection	Weight loss, regurgitation or abnormal digestive signs	Testing may be needed to distinguish it from other digestive disorders
Psittacosis	Respiratory or general illness, sometimes few obvious signs	Infection can also pose a human-health risk
Liver disease	Appetite changes, abnormal droppings or other systemic signs	Dropping colour alone cannot identify the condition
Reproductive disorders	Straining, weakness, abnormal posture or abdominal enlargement	Egg-related emergencies may require urgent treatment
Heavy-metal or inhaled toxin exposure	Weakness, neurological signs or breathing distress	Delay may worsen the outcome; the exposure history is important
Trauma	Bleeding, wing droop, lameness or poor balance	Internal injury may be more serious than visible wounds

The Merck Veterinary Manual’s overview of bird diseases describes infectious, nutritional and environmental causes of disease. Its separate guidance on lung and airway disorders and digestive disorders explains why similar visible symptoms may require very different assessments.

10. First aid for a sick bird before going to the vet

First aid should focus on protecting the bird from further harm and arranging veterinary treatment. It should not delay diagnosis or encourage owners to administer medication themselves.

Step 1: Telephone an avian-capable veterinary service

Describe the species, approximate age, symptoms, when they began and any known exposure or injury.

Tell the practice immediately if the bird is breathing with difficulty, collapsed, bleeding or having seizures.

Not every emergency clinic routinely treats birds, so ask whether avian emergency care is available and where to go if it isn’t.

Step 2: Reduce stress and activity

Keep the environment quiet and avoid unnecessary handling.

Do not invite family members to gather around the bird or repeatedly remove it for examination.

If there are other birds in the household, ask the vet whether temporary separation is appropriate.

Step 3: Prepare safe transport

Use a secure, well-ventilated carrier suitable for the bird’s size and condition.

A very weak bird may need an arrangement that reduces the risk of falling from a perch; ask the veterinary team for guidance.

Keep the carrier protected from draughts and abrupt temperature changes without blocking ventilation.

Step 4: Avoid overheating

Some sick birds benefit from a comfortably warm environment while awaiting professional care.

However, an exact temperature such as 85–90°F (29–32°C) should not be applied automatically to every bird, particularly during heat stress or when respiratory effort is increased.

Veterinary sources describe specific supportive temperatures in particular circumstances, but the correct approach depends on the bird’s condition, surroundings and monitoring.

Ask the veterinary team whether additional warmth is appropriate and how to provide it safely.

Do not place an unmonitored heating pad directly beneath a bird or expose it to uncontrolled hot air.

Step 5: Avoid unprescribed treatments

Do not give human painkillers, leftover antibiotics, essential oils or medicines intended for another animal.

Do not force food or water into the beak of a weak or distressed bird.

Syringe-feeding can result in aspiration when performed incorrectly.

If you suspect poisoning, do not wait for symptoms before seeking professional advice.

Step 6: Take useful information to the appointment

Bring a concise record of symptoms, recent food intake, droppings changes, possible injuries, household exposures and any medications already administered.

Photos or short videos may help communicate intermittent signs, provided recording them does not delay care.

Ask the clinic whether a fresh dropping sample would be useful.

The Merck Veterinary Manual’s first-aid guidance explains that stabilising the bird is the first priority during emergencies.

11. Household hazards that can make birds suddenly ill

Some respiratory emergencies begin with environmental exposure rather than a contagious disease.

Overheated PTFE-coated cookware and certain other heated equipment can produce fumes that are extremely dangerous to birds.

Smoke, aerosol products and other household chemicals can also cause problems.

If your bird suddenly becomes weak or has difficulty breathing after a suspected exposure, treat the situation as an emergency. Leave the contaminated environment if it is safe to do so and contact a veterinary service immediately.

Do not continue using the suspect appliance or product while investigating.

The Merck Veterinary Manual’s pet-bird toxicology reference explains the particular danger associated with heated PTFE fumes.

12. Can illnesses in pet birds affect people?

Some avian diseases can be transmitted to humans. One example is psittacosis, also called parrot fever, which is caused by the bacterium Chlamydia psittaci.

People can become infected after breathing in contaminated dust from dried bird droppings or respiratory secretions.

Not every sick bird has psittacosis, and some infected birds may have few outward signs.

The US Centers for Disease Control and Prevention explains the infection and its potential effects on human health.

To reduce avoidable exposure:

• Wash hands after handling birds, their droppings or cage equipment.
• Avoid dry sweeping or vacuuming potentially contaminated droppings.
• Follow veterinary guidance when separating and caring for a bird with suspected infectious illness.
• Tell a healthcare professional about bird exposure if you develop relevant respiratory symptoms.

The CDC’s psittacosis prevention guidance provides further information about safe cleaning and hygiene.

13. How to monitor your pet bird’s health at home

You don’t need to handle your bird constantly to notice useful changes.

Simple, consistent observation is usually more helpful.

Watch normal behaviour every day

Notice when your bird normally wakes, vocalises, eats, drinks, preens and rests.

Pay attention to changes in activity, usual perching locations and interaction.

Monitor food and water intake

Check whether food is actually being consumed and whether drinking habits appear different.

A food bowl that looks full does not prove the bird has eaten.

Observe droppings

Use an easily inspected cage liner and become familiar with your bird’s ordinary dropping appearance and frequency.

Record significant or persistent changes.

Track weight when practical

For a bird already accustomed to stepping onto a suitable gram scale, regular measurements can be useful.

Use consistent conditions and discuss concerning changes with an avian veterinarian.

Do not forcibly catch a frightened bird every day simply to obtain a weight.

Schedule veterinary wellness examinations

Routine visits can help establish the bird’s health baseline and identify issues that may be difficult to recognise at home.

The Association of Avian Veterinarians provides resources explaining preventive veterinary care and when to seek help.

Frequently asked questions

The most important thing to remember

A healthy routine gives you something to compare against.

Learn how your bird normally behaves, perches, breathes, eats and passes droppings. Notice changes early, but don’t try to identify a disease from one sign.

When your bird is weak, unresponsive, bleeding continuously or struggling to breathe, contact an emergency veterinary service immediately.

Observing carefully and seeking professional help promptly are the most useful things you can do for a bird that may be seriously ill.