The great green macaw, also known as Buffon's macaw or the great military macaw, is a critically endangered Central and South America parrot found in Nicaragua, Honduras, Costa Rica, Panama, Colombia and Ecuador. Two allopatric subspecies are recognized; the nominate subspecies, Ara ambiguus ssp. ambiguus, occurs from Honduras to Colombia, while Ara ambiguus ssp. guayaquilensis appears to be endemic to remnants of dry forests on the southern Pacific coast of Ecuador. The nominate subspecies lives in the canopy of wet tropical forests and in Costa Rica is usually associated with the almendro tree, Dipteryx oleifera.

The military macaw is a medium- to larger-sized macaw, named after its green and red plumage vaguely resembling a military uniform. It is native from west-central México south through northern Argentina and Bolivia. While most wild populations are currently listed by the IUCN as vulnerable—and listed as endangered by México—, the species is still seen commonly in zoos and parks worldwide. The military macaw may be bred in captivity with relative ease, and is usually available through the pet trade. It is among the longest-lived and most expensive bird species one can own, requiring advanced knowledge, experience and confidence to keep them healthy, stimulated and thriving.