They are green with blue on the wings, red and blue on their tails and a red band across the base of their beak.
Macaws have huge strong grey-black bills.
This beak also serves as a hand, and is used extensively by the macaws when climbing. They are said to be able to exert about 40 pounds of pressure with their beak. Their feet are zygodactylous, meaning that the 2 outer toes of the foot point backwards and grip in opposition to the 2 forward- pointing toes. This gives the macaw an excellent grasp of its perch or tree limb. There are locking tendons in its lower ankle area which lock when sleeping on a perch or limb and prevent falling.