Respiratory Infection in Blue-and-Gold Macaws
Respiratory disease in this species can progress quickly given how much air exchange a bird this large and active depends on, and it's worth reading in this species' specific context rather than treated as generic across all pet birds.
Possible causes
- Bacterial or fungal (including aspergillosis) infection — see this site's respiratory-infection disease pillar for general avian respiratory pathophysiology and shared mechanisms across bird species
- Airborne irritants this species is especially exposed to given its size and activity level: cooking fumes, aerosols, scented candles, cigarette smoke, and dusty environments
- Poor ventilation combined with high humidity or ammonia buildup from infrequent cage cleaning, more consequential in a large cage housing a large bird producing correspondingly more waste
- Chlamydiosis (avian psittacosis) — see the dedicated psittacosis pillar for the general disease mechanism; macaws are a documented susceptible species and this is a zoonotic concern worth discussing directly with an avian vet
- A weakened immune system secondary to chronic stress, malnutrition, or another underlying illness
What to do
- Watch specifically for tail-bobbing with each breath, open-mouth breathing, audible clicking or wheezing, and any change in the normal contact-call voice — a macaw's large vocal apparatus means voice changes are often one of the earliest detectable signs
- Move the bird immediately away from any recent new airborne irritant (a candle, a new cleaning product, cooking smoke) as an emergency first step while arranging vet care
- Keep the bird warm and in a low-stress, quiet space during transport and while awaiting the appointment — respiratory-compromised birds tolerate additional stress poorly
- Do not attempt home remedies or over-the-counter treatments; avian respiratory disease needs vet diagnosis (often including radiographs or culture) to identify the actual cause before treatment
This site's respiratory-infection pillar covers the general mechanism shared across pet bird species — see that page for how avian respiratory disease typically develops and is diagnosed. What's specific to the blue-and-gold macaw is largely about scale and voice: this is a large-lunged, powerfully-voiced bird whose enormous natural contact calls make vocal changes an unusually useful, and often early, tell that something respiratory is developing, well before more obvious labored breathing appears.
Because macaws are frequently kept in larger, open living spaces, they're also more commonly exposed to household-scale irritants that smaller caged birds might be kept farther from — a kitchen with a non-stick pan overheating, a recently lit scented candle, or aerosol air freshener in the same room can affect a macaw's sensitive respiratory system quickly and severely; birds have an extremely efficient, one-directional air-flow respiratory system that makes them disproportionately vulnerable to airborne toxins compared to mammals in the same room.
Psittacosis (chlamydiosis) deserves specific mention for this species both because macaws are a recognized susceptible carrier and because it's zoonotic — transmissible to humans, generally causing flu-like illness. Any respiratory workup in a macaw showing these signs should include this on the differential list, and any household member developing unexplained flu-like symptoms alongside a sick bird should mention the bird to their own physician.
Aspergillosis, a fungal respiratory infection, is a specific concern worth flagging for macaws housed in outdoor aviaries or damp climates more than for strictly indoor birds, since the causative mold thrives in damp bedding, spoiled food, or poorly ventilated outdoor structures — a macaw kept outdoors part-time in a humid region carries meaningfully higher exposure risk than one kept exclusively in a climate-controlled indoor space, and aviary hygiene deserves proportionally more attention as a result.
Given this species' large chest cavity and correspondingly powerful voice, a macaw owner is often better positioned than the owner of a quieter bird to notice a subtle vocal change early — a favorite contact call that sounds slightly raspy, quieter, or different in pitch than usual is a genuinely useful early-warning sign worth taking seriously rather than dismissing as the bird 'just being quiet today.'
Sinus and upper-respiratory involvement in this species can also affect the nares (nostrils) and the area around the cere, sometimes producing visible discharge, crusting, or one-sided swelling near the beak base before lower-respiratory signs like tail-bobbing appear — checking this area during a daily visual once-over, alongside listening for voice changes, gives a keeper two independent early-warning channels rather than relying on labored breathing alone, which tends to show up only once the condition has progressed further.
A macaw showing even mild respiratory signs should not be bathed or misted with water until cleared by a vet, since added moisture on an already-compromised respiratory system can worsen discomfort and, in a genuinely sick bird, added handling stress from a bath is counterproductive regardless of the bird's normal enjoyment of misting when healthy.
Because macaws are often kept in larger, multi-room homes with more varied airflow patterns than a bird confined to a single small room, tracking down the specific source of an airborne irritant can take more detective work in this species' typical living situation — checking recently used cleaning products, candles, or cooking activity across the whole home, not just the room the cage sits in, is a reasonable step when a cause isn't immediately obvious.
Preventing this long-term
Keep the bird's living space free of aerosols, scented candles, non-stick cookware fumes, and smoke entirely — there is no genuinely safe exposure level for a bird's respiratory system with several of these
Maintain good cage-area ventilation and a realistic cleaning schedule scaled to this species' larger waste volume, since ammonia buildup irritates the respiratory tract over time even without an active infection
Quarantine any newly acquired bird for the standard 30-45 day period before introducing it to an existing macaw, given psittacosis and other respiratory pathogens can be present without obvious symptoms
Keep annual avian wellness visits on schedule — early subclinical respiratory changes are sometimes caught on a routine exam before symptoms are visible at home
For any macaw with outdoor aviary access, keep bedding and food areas dry and mold-free, and inspect regularly, since aspergillosis risk rises substantially in damp outdoor conditions
When to see a vet
Open-mouth breathing, tail-bobbing, audible respiratory sounds, or a sudden voice change in a macaw is an urgent, same-day avian-vet situation — this species' size doesn't buy meaningfully more time than it would in a smaller bird once true respiratory distress sets in.
This is general educational care information, not veterinary diagnosis. For a sick or injured animal, see a qualified exotic-animal vet promptly — especially for anything acute (not eating combined with lethargy, breathing changes, bleeding, or any sudden behavior change). Nothing on this page substitutes for an in-person exam.
Other Blue-and-Gold Macaw problems
- Feather Plucking in Blue-and-Gold Macaws
- Blue-and-Gold Macaw Not Eating
- Egg-Binding in Blue-and-Gold Macaw Hens
- Overgrown Beak in Blue-and-Gold Macaws
- Screaming and Excessive Vocalization in Blue-and-Gold Macaws
- Biting and Aggression in Blue-and-Gold Macaws
- PBFD in Blue-and-Gold Macaws
- Diarrhea in Blue-and-Gold Macaws
- Lethargy in Blue-and-Gold Macaws
- Feather-Damaging Behavior in Blue-and-Gold Macaws (Beyond Plucking)
- Night Fright in Blue-and-Gold Macaws
- Obesity in Blue-and-Gold Macaws
- Mite Infestation in Blue-and-Gold Macaws