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Military Macaw

Ara militaris

  1. Not Evaluated
  2. Data Deficient
  3. Least Concern
  4. Near Threatened
  5. Vulnerable
  6. Endangered
  7. Critically Endangered
  8. Extinct in the Wild
  9. Extinct

About Us

Experience Woburn Safari Park’s free flying bird demonstration, see these magnificent parrots soaring and swooping in the Birds in Action Amphitheatre. Learn about these intelligent birds, how they adapt and survive in the wild.

Mexico and South America
Mountainous terrain, woodland
70-84cm (beak to tail), Wingspan 99–110cm
Up to 60 years
Habitat loss, hunting and pet trade

Social structure

Military Macaws are seen in pairs, family groups and flock in large numbers. In the wild, these birds can choose their partner before they even reach the age of maturity. The wings of these paired birds are close together when in flight as if they are almost touching. They leave their nesting area during the day to feed. Birds of prey are the biggest predators to parrots although monkeys, and other tree-dwelling mammals and snakes, can take parrot eggs and young chicks. When a flock of parrots become aware of a potential predator it quickly falls silent before noisily exploding from cover, the sudden noise and movement causes temporary confusion for the predator. During the night they seek safety in tree hollows.


Parrots mainly eat plants. Seeds, fruits, blossoms, buds, leaves, berries, nuts and sometimes bark are principal known food items. The Macaws are structurally adapted, with their massively powerful bills (beaks) to exploit various palm nuts. They have the ability to manipulate food items, moving them with their feet, testing them with their dry tongues, and tossing food around in their beaks.

A wide range of parrots visit earth banks to take mineral rich soil where they congregate in very large numbers. Visiting clay banks to take mineral deposits has a very important function as this helps neutralise the toxic effects of poisons ingested from fruits or plants. 

Physical features

Military Macaws are mostly green. They have a patch of bright red feathers just above their beak. Their back and wings are green apart from the flight feathers which are blue. Their undersides of the flight feathers are a yellowish olive-green. Their under tail feathers are blue and the upper tail feathers start off red, merge into green and then turn blue. Their beak is black and the naked skin of cheeks is pinkish-white with lines of very small, isolated black feathers. Their iris’ (eyes) are pale yellow and their legs dark grey.

Adult female and male Military Macaws are similar in size, weight and colour. All species of Macaws are monomorphic, which means that there are no obvious differences between the sexes, not even by their plumage or physical indicators. Young Macaws will have dark brown pupils while an adult bird will have yellow rings around the pupils, and the plumage of young birds is duller compared to the adults. To determine the gender of adult birds, a blood test or DNA test could be taken.

Breeding behaviour

Military Macaws reach maturity when they are about 2 to 4 years old. They display courtship rituals to indicate they have found a suitable mate; they are generally monogamous (paired for life). However, they may replace a mate that they have lost. Most breeding activities occur from January to March and they usually breed every 1 to 2 years. In their natural habitat, they nest in the hollow trunks of dead palm trees or cavities (natural or excavated by other birds) in tall trees high up to avoid predation. Females lay between 2-3 eggs and will be incubated for 25-29 days.  

The hatchlings weigh about 23g (0.8oz) and are blind, featherless and completely dependent on parental care. For the first week, the female alone feeds the young through regurgitation and after that time, the male will usually assist. About 10 days later, the young develop feathers. Both parents are very protective of their young and aggressively defend them against intruders. The young fledge the nest when they are about 12 -13 weeks old. By the time they start feeding on their own, they weigh between 930 – 985g (32-34 oz.).


Military Macaws are very expressive, communicating through sight and sound. They show emotions by vocalizing, flashing their eyes (voluntary narrowing their pupils), blushing and cocking their head. Other forms of communication include fluffing of the feathers, bowing, shaking of tail feathers, head bobbing and raising of the wings. They also use flock calls which are loud vocalizations to communicate. 

Threats and conservation

Today the Military Macaw is listed on CITES as Appendix I, meaning these birds are vulnerable in the wild. Parrots at risk in the wild face a wide range of pressures. The main sources of threat arise from habitat loss, hunting and introduced species cause problems for native wildlife because of predation and competition for food. Collection of birds for the live pet trade has been a major threat for many species of parrots. These birds high level of intelligence, potential for tameness, bright plumage and the ability to mimic human voices, have led to the parrot’s popularity as cage birds.

Zoos and other institutions seek to maintain captive populations in order to safeguard against possible extinction in the wild. This breeding is sometimes well coordinated and is orchestrated through the use of studbook keepers. Other breeding is undertaken commercially to meet demands of the pet trade, sometimes to the extent that species have self-sustaining captive populations meaning catching of wild parrots no longer needs to take place (for example budgerigar, cockatiel and several species of lovebird).

There are unfortunately draw backs to captive breeding. Some of the species are at such low levels that trapping for captive breeding would only worsen their wild status. Captive breeding may do nothing to reduce the pressures which have rendered a parrot species scarce. Habitat loss, illegal capture or the effects of introduced predators may continue. If successful breeding is achieved, there may then be no place to release captive bred birds to recolonize.

Future proposed conservation action plans consist of monitoring the largest known populations and control capture and trade of wild birds. Improve the management and awareness initiatives in and around national parks.

Fun facts

There is another Macaw species, which is very similar to the Military Macaw.  It is the Great Green Macaw (Ara ambigua) which is native to Central America. The two taxa are so similar that they are also known as the "Lesser" (militaris) and "Greater" (ambigua) Military Macaw.

A Parrot’s vision is remarkably different from ours. Like many avian species, their ability to see into the ultraviolet spectrum enables them to see colours we cannot even imagine.