Sun Conures measure 12 inches (30cm) in length, including the long tail. They weigh between 3.5 - 4.5 oz (100 - 130g), with an average weight of 4 oz (110 g.)
The plumage of the sun conure is a strikingly beautiful red/orange/yellow over most of the bird. The wings have a slight green on the wings.
Both males and females look alike.
Immature Sun Conures have a mostly green plumage. As they mature, more and more of their green feathers on the back, abdomen and head are replaced with yellow, orange and reddish feathers of the adult.
They usually attain their adult plumage when they are about 18 months old.
Reproductive maturity is reached when they are about two years old.
In flight, they make screechy and rapidly repeated sounds.
While perched, chuckling and thin, high-pitched wheezy notes can be heard.