The Hyacinth Macaw is the largest macaw and the largest flying parrot species in the world. In terms of length it is larger than any other species of parrot. While generally easily recognized, it can be confused with the far rarer and smaller Lear's Macaw. Their popularity as pets has taken a heavy toll on their population in the wild.
The Hyacinth Macaw is 100 cm long from the tip of its tail to the top of its head and 1.5 kg in weight. Its feathers are entirely blue, lighter above and darker on its wings. It has a large black curved beak. It has bright-yellow bare skin at the base of its lower beak and also yellow bare skin circling its eyes. Male and female have identical external appearances.