Red-shouldered Macaw

The red-shouldered macaw is a small green South American parrot, a member of a large group of Neotropical parrots called macaws. The species is named for the red coverts on its wings. It is the smallest macaw, being 30 cm (12 in) in length – similar in size to the Aratinga parakeets. It is native to the tropical lowlands, savannahs, and swamplands of Brazil, the Guianas, Bolivia, Venezuela, and far south-eastern Peru. There are three subspecies: The noble macaw, Hahn's macaw, and the long-winged macaw. The long-winged macaw is a poorly distinct third subspecies that has longer wings, but is otherwise similar to the noble macaw. 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.

Source: Wikipedia