🐦 FlyingCare difficulty: AdvancedLegal complexity: Medium
Military macaw
Ara militaris · also called military macaw, military green macaw
The military macaw is a large, mostly green macaw named for its uniform-like plumage, with the powerful beak, volume, and intelligence typical of the big macaws. It is a demanding, long-lived bird for experienced keepers with space to spare.
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Quick facts
| Size | Large — about 27–30 inches head to tail, 0.9–1.1 kg. |
| Lifespan | 40–60 years |
| Social needs | pair |
| Native region | Mexico and South America |
| Origin | New World |
| Climate | 🌴 Tropical |
| Family | Psittacidae |
| Genus | Ara |
Part of the Macaws
Macaws are the largest of the New World parrots, prized for their vivid plumage, intelligence, and strong pair bonds. They are long-lived, loud, and demanding companions best suited to dedicated, experienced keepers with ample space.
Sounds & video
🔊 What does a military macaw sound like?
Ara militaris - Military Macaw XC250486
Niels Krabbe · Wikimedia Commons · CC BY-SA 4.0
Habitat & space requirements
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Habitat & enclosure
Military macaws are full-size macaws and need correspondingly large housing. MINIMUM cage for a single bird is roughly 36 in W × 36 in D × 60+ in H with heavy bars spaced about 1 to 1.5 inches; the enclosure must be macaw-rated, as this beak destroys flimsy construction and opens simple latches. RECOMMENDED is the largest macaw cage practical (around 40 × 30 × 60+ in) plus several hours of daily out-of-cage time on a sturdy play stand. IDEAL is a dedicated flight room or large outdoor aviary several feet in each dimension, with a heated, draft-free shelter in cooler climates.
Provide thick natural-wood perches of varying diameters, durable stainless or powder-coated hardware, and placement that keeps the bird socially involved but away from kitchen fumes, direct sun, and drafts. A consistent light cycle with a calm sleeping area supports behavioral health.
Military macaws are powerful chewers and need a steady rotation of large destructible toys, foraging puzzles, wood, leather, and whole nuts to work. Offer regular bathing by shower, mist, or dish. Eliminate airborne killers from the home — PTFE/Teflon fumes, self-cleaning ovens, smoke, scented candles, and aerosols can be rapidly fatal to birds — and ensure all cage locks are genuinely escape-proof.
Substrate
Cover the cage or aviary floor with newspaper or butcher paper for daily removal of large droppings and dropped food; avoid loose substrates that can be chewed and impacted. In walk-in aviaries a sealed concrete or coated floor that can be hosed and disinfected works best.
Equipment & setup
This large macaw needs a heavy-gauge stainless steel cage at least roughly 3 to 4 feet wide and ideally a flight aviary, with thick hardwood perches sized so the foot wraps about two-thirds around. Provide full-spectrum/UVB lighting on a 10 to 12 hour cycle, protection from drafts and temperatures below the low 60s F, and a misting/shower setup since they need regular bathing for feather and skin health.
Diet
Build the diet on a formulated pellet for large parrots, supplemented daily with a wide variety of vegetables and leafy greens, limited fruit, and cooked legumes or whole grains. As with other macaws, a measured amount of nuts is appropriate enrichment and reflects natural foraging, but total fat must be controlled to prevent obesity and fatty liver disease.
Keep fresh water available at all times. Never offer avocado, chocolate, caffeine, alcohol, onion, garlic, or salty processed foods, all of which are toxic to parrots. Avoid all-seed diets, which lead to malnutrition over time.
Behavior & temperament
Military macaws are loud. Their natural calls are harsh, far-carrying screeches, and like all large macaws they cannot be trained to be quiet, which makes them poor choices for apartments or noise-sensitive households. They can learn some words but have limited, gravelly speech and are kept primarily for their personality, beauty, and intelligence.
Intelligent, active, and social, they bond strongly and can be affectionate and playful, but they are also strong-willed and capable of a powerful, injurious bite, especially when hormonal or overstimulated. They need extensive daily interaction, training, and enrichment; neglected birds commonly develop screaming, biting, and feather-destructive behavior. Many do well with a same-species companion. Learning to read pinned eyes, flushed facial skin, fanned tail, and raised feathers helps prevent bites.
Health
Military macaws require an experienced avian veterinarian and routine wellness exams with weight tracking, and their multi-decade lifespan calls for long-term care planning. Birds mask illness, so any subtle change deserves attention.
Common and serious health concerns across large macaws include proventricular dilatation disease (PDD), psittacosis (a zoonosis), fungal respiratory disease such as aspergillosis, feather-destructive behavior, and nutritional disease including obesity and fatty liver from poorly balanced diets. Reproductively active hens may face egg-related problems.
Seek prompt avian-veterinary care for a fluffed, quiet bird, open-mouth or tail-bobbing breathing, regurgitation with weight loss, undigested food in droppings, neurologic signs, or any sudden behavioral or appetite change. As with all macaws, a same-day call to an avian vet is wise whenever the bird seems off.
Tips, DIY & hacks
Military macaws have powerful beaks and high enrichment needs, so supply large foraging toys, leather/wood destructibles, and hidden-food puzzles; rotate them to prevent boredom-driven screaming and feather plucking. Mount a sturdy play stand or rope boing outside the cage for daily out-of-cage exercise, and use stainless hardware only, as these birds will destroy plastic and chrome clips.
Origin & history
The military macaw is native to a patchy range across the Neotropics, from Mexico through parts of Central and South America, where it inhabits forested and semi-arid woodland and canyon habitats. Its common name comes from the way its largely green plumage, accented with a red forehead and blue flight feathers, was thought to resemble a military uniform. Several subspecies are recognized across its broad but fragmented distribution.
Like other large macaws, the species has been affected by habitat loss and capture for the pet trade and is protected under CITES and national laws, so legal ownership means a captive-bred, documented bird. In aviculture it is less common than the showier blue-and-gold or scarlet macaws but is valued for its handsome green coloration and classic macaw personality. It is closely related to the larger great green (Buffon's) macaw, with which it is sometimes confused.
Anecdotes & owner lore
Community experience and cultural notes — not veterinary advice. Every animal is an individual; treat these as colour, not care instructions.
Military macaw owners affectionately note that their bird looks like it is perpetually dressed for parade — the neat olive-green 'jacket,' the little red 'cap' on the forehead, and the flash of blue on the wings give the species a buttoned-up, soldierly look that earned it its name. Less buttoned-up is the voice: a military macaw greeting the morning sounds like a foghorn with opinions, and owners trade stories of being able to hear their bird from the far end of the house, the yard, or occasionally the neighbor's yard.
In the wild, militaries are known for spectacular cliff-face and canyon roosts, where flocks wheel and screech around rock walls in a way that makes them a favorite of birdwatchers in Mexico and South America. As pets they have a reputation as 'big personalities' — playful, opinionated, and devoted to their chosen person — and keepers often remark that beneath the imposing beak is a goofy bird that loves to hang upside down, 'talk' in gravelly mutters, and supervise every household activity as though it were on duty.
Common ailments
- Psittacosis (avian chlamydiosis) — rare — Zoonotic — tell your physician about bird contact if you develop respiratory illness.
- Feather-destructive behavior (feather plucking) — common
- Proventricular dilatation disease (PDD) — rare
Reviewed and signed off by: KinStation Editorial — pre-launch draft (pending DVM review)