D. n. cumanensis (Lichtenstein 1823) D. n. longipennis Neumann 1931 D. n. nobilis (Linnaeus, 1758) The red-shouldered macaw (Diopsittaca nobilis) is a small green South American parrot, a member of a large group of Neotropical parrots called macaws.

It is native to the tropical lowlands, savannah, and swamplands[2] of Brazil, the Guianas, Bolivia, Venezuela, and far south-eastern Peru.

The Hahn's subspecies is named for German zoologist Carl-Wilhelm Hahn, who in 1834 began compiling Ornithologischer Atlas oder naturgetreue Abbildung und Beschreibung der aussereuropäischen Vögel (Engl: Ornithological Atlas or natural depiction and description of birds from outside Europe).

Though wild populations of red-shouldered macaws have declined locally due to habitat loss, they are listed as Least Concern by IUCN.

The red-shouldered macaw was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae.

[4] The red-shouldered macaw is now the only species placed in the genus Diopsittaca that was introduced in 1912 by the American ornithologist Robert Ridgway.

If properly socialized, it is typically a gentle, intelligent bird that bonds well with humans and gets on well with well-behaved children.

It may be a more suitable pet parrot for those who lack the space in their homes for a larger macaw, although it requires daily exercise outside of its cage.