Note: Information is dated. Do not rely on it.Macaw. A genus of beautiful birds of the parrot tribe. The macaws are magnificent birds, distinguished by having their cheeks destitute of feathers, and their tails long and wedge-shaped. They are all natives of the tropical regions of South America. The largest and most splendid in regard to color is the great scarlet or red and blue macaw. The great green macaw and the blue and yellow macaw are somewhat smaller.