Keepers Guide

bird

Green-Winged Macaw

Ara chloropterus

The green-winged macaw is often mistaken for a large scarlet macaw at a glance, since both are predominantly red-bodied, but two field marks separate them reliably: the green-winged carries a broad band of genuinely green covert feathers across the upper wing (where a scarlet macaw shows yellow), and its otherwise bare white facial patch is marked with fine rows of small red feathers running across the cheek — a distinctive 'feather-lined face' this species has and the blue-and-gold macaw's largely unmarked white-and-black facial patch does not. It is also simply bigger and heavier-bodied than the blue-and-gold macaw, with one of the largest beaks of any parrot species relative to body size, built for cracking exceptionally hard palm nuts and seed pods. Despite that intimidating bill, green-winged macaws have a strong, widely reported reputation among aviculturists and keepers as unusually calm, gentle, and even-tempered for a large macaw — often described as the 'gentle giant' of the macaw world, a reputation distinct from the more classically outgoing, sometimes more excitable blue-and-gold. The core large-parrot husbandry principles — cage size as only a base station, daily out-of-cage flight and enrichment time, room-proofing, a pelleted-and-fresh-food diet, and the wing-clip and cage-versus-out-time debates — apply to this species essentially the same way they apply to any giant macaw, so a keeper researching general macaw housing and enrichment standards will find that material directly relevant here rather than needing a separate framework.

Lifespan

Typically cited at 50-60 years under attentive captive care, and individual macaws well past 60 are documented in the aviculture literature

Size

35-39 in (89-99cm) beak to tail tip — among the largest parrot species by overall length, with a heavier, denser build than the blue-and-gold macaw

Origin

Tropical and subtropical forest, woodland, and forest edge across a wide swath of South America, from Panama and Colombia through the Amazon basin down into Paraguay and northern Argentina

Husbandry

Enclosure size
Given the species' heavier build relative to other giant macaws, aviaries and cages toward the upper end of the standard large-macaw range (roughly 4ft wide, 3ft deep, and 5-6ft tall or more) suit this bird better than a minimum-spec enclosure; the cage functions as a base rather than the bird's main living space, since hours of daily supervised time outside it are part of baseline care for this taxon
Source: Association of Avian Veterinarians (AAV) large-parrot housing guidance (checked 2026-05-10)
Temperature gradient
Ordinary indoor household temperatures suit this species, roughly 65-80°F (18-27°C), with no special heating or cooling equipment required beyond avoiding direct drafts and unshielded vents that would create a sudden temperature swing right at the cage
Source: Merck Veterinary Manual — Pet Bird Housing (checked 2026-05-10)
Diet
This species' unusually large, powerful beak is built specifically for cracking exceptionally hard palm nuts, so whole in-shell nuts (Brazil nuts, walnuts, macadamias) offered as part of the diet do double duty as nutrition and as demanding, appropriate beak work, alongside a pelleted base and a wide rotation of fresh vegetables and modest fruit; a seed-heavy diet undersupplies nutrients this bird's size and metabolism need
Source: Association of Avian Veterinarians (AAV) nutrition guidance (checked 2026-05-10)
Supplementation
A nutritionally complete pelleted base generally removes the need for routine added vitamins or minerals; where a vet identifies a specific deficiency or life-stage need, supplementation should follow that individual guidance rather than a standard blanket regimen
Source: Association of Avian Veterinarians (AAV) nutrition guidance (checked 2026-05-10)
Cohabitation
Pairing this species with an unfamiliar bird carries meaningful risk given the beak strength involved, so introductions need real caution and space; a single, closely bonded human-and-bird household or a properly established bonded pair are the two workable long-term setups
Source: Merck Veterinary Manual — Pet Bird Behavior (checked 2026-05-10)

Honest disagreement among sources

How much the breed's calm reputation should influence handling expectations

Current best practice: Treat the widely reported gentle temperament as a genuine population-level tendency worth factoring into expectations, while still building trust gradually with any individual bird rather than assuming calmness on day one

Noted disagreement: Some keepers, drawn in specifically by the species' gentle-giant reputation, underestimate how much individual variation and rearing history still shape a given bird's actual temperament, and are caught off guard when a specific green-winged macaw doesn't match the breed-wide generalization — a mismatch that echoes similar overconfidence seen with other 'easy' large-parrot reputations

Handling

Long-time aviculturists routinely single out the green-winged macaw as more even-tempered and biddable, on average, than several other large macaws, and that reputation is one of the main reasons keepers seek the species out specifically. That said, its beak is proportionally larger and stronger than a blue-and-gold's, and an overstimulated or startled bird can bite hard without any actual hostility behind it — the gentler average disposition lowers the odds of trouble, but it doesn't remove the physical stakes of a beak this size. New keepers still benefit from the standard large-parrot groundwork of step-up training, learning individual body-language cues, and letting the bird set the pace of physical contact, treating a calm reputation as a favorable starting point rather than a shortcut past that process. Individual history matters too: a green-winged macaw that has passed through multiple homes, or was poorly socialized as a juvenile, can take considerably longer to extend trust than the species' general reputation would suggest.

Signs of good health

Common problems

14 common bird problems are tracked for this species; 0 have full guides published so far.

Recommended gear for Green-Winged Macaw

Equipment categories that are genuinely correct for this species' welfare needs — see the full Gear Guide for the complete list.

Digital infrared temperature gun

Measures actual basking SURFACE temperature, not just ambient air — a stick-on dial thermometer reads air temp, which is a poor proxy for the surface temp that drives digestion and thermoregulation.

Foraging-based enrichment (treat balls, puzzle feeders)

Foraging-based feeding meaningfully reduces stress-driven behaviors (feather plucking in birds, bar-chewing in small mammals) compared to a plain food bowl — matches the enrichment guidance referenced across the relevant species and problem pages.

Simple, easy-to-sanitize quarantine enclosure

A separate, minimal, easy-to-bleach-and-rinse enclosure (as opposed to the animal's permanent bioactive setup) makes a genuine multi-week quarantine period realistic — see the Quarantine Timeline Planner tool for recommended duration.

Some links below are Amazon Associates / Chewy affiliate links — Keepers Guide may earn a small commission on qualifying purchases, at no extra cost to you. We only recommend equipment categories that are genuinely correct for the species' welfare needs; we never recommend a product because of the commission.

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.