Red-shouldered macaws are the smallest macaws in existence, being only 30-35cm long. They are mostly green with blue foreheads and red feathers on the inner bend of their wings, giving them their names. Like all macaws, they have a bald white patch around their eyes. They are very social birds, often found in large flocks. They will associate with other species of parrot without becoming aggressive towards them. When not socializing with other members of the flock or finding food they will spend time with their mates. They are a monogamous species and mate for life.