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In most species the bill is black, but the scarlet macaw and green-winged macaw have a predominantly horn coloured upper mandible and a black lower one. The colours in the plumage of the Ara macaws are spectacular. Four species are predominantly green, two species are mostly blue and yellow, and three species (including the extinct Cuban macaw ...
(Ara glaucogularis) 75–85 cm (30–34 in) long. Blue upperparts and mostly yellow lowerparts, blue throat. Areas of pale skin on the sides of the face are covered with lines of small dark-blue feathers, with pinkish bare skin at the base of the beak. [11] North Bolivia Scarlet macaw (Ara macao) 81–96 cm (32–36 in) long.
Blue-throated macaw, Ara glaucogularis; Military macaw, Ara militaris; Great green macaw or Buffon's macaw, Ara ambiguus; Scarlet macaw or Aracanga, Ara macao; Red-and-green macaw or green-winged macaw, Ara chloropterus; Red-fronted macaw, Ara rubrogenys; Chestnut-fronted macaw or severe macaw, Ara severus †Cuban red macaw, Ara tricolor (extinct)
These birds can reach a length of 81–91 cm (32–36 in) and weigh 1.0–1.5 kg (2–3 lb), making them some of the larger members of their family. They are vivid in appearance with bright aqua blue feathers on the top of their body except for the head, which is lime colored.
The scarlet macaw is now placed in the genus Ara (Lacépède, 1799), one of 6 genera of Central and South American macaws. [4] The two subspecies can be recognized by size and color detail in the feathers on the wings: [4] Ara macao macao (Linnaeus, 1758): South American scarlet macaw, the nominate subspecies. In the wings the medium and ...
The beak has variously been described as dark, all-black, and greyish black. The legs were brown. [2] [7] [14] The sexes were identical in external appearance, as with other macaws. [16] The Cuban macaw was physically distinct from the scarlet macaw in its lack of a yellow shoulder patch, its all-black beak, and its smaller size. [9]
The legs and feet are said to have been black; the tail, red and yellow intermixed (Rob.) [2] Robertson stated the bird had never been seen or figured before, and that it was very different from any macaw he had ever seen. One 1765 illustration is thought to depict this bird, but has also been suggested to be an imported Cuban macaw. [3]
Some writers have suggested that the birds observed were actually blue-and-yellow macaws (Ara ararauna). The "red-tailed blue-and-yellow macaw" (Ara erythrura), another species named by Rothschild in 1907 based on a 1658 account, is thought to be identical to the Martinique macaw, if either one ever existed.