St. Thomas Conures average 10 inches (25 centimeters) in length at maturity. Though there are many subspecies, with different color variations, this subspecies, like the others has mostly green feathers. The ring around the eye area is white, with the iris being yellow. The bill of the St. Thomas Conure is black. The young Conures have a lighter color bill on top, and brown cheeks. The throat area, as well as the upper breast is usually an olive brown. Immature individuals have a green breast. They have blue crowns, with yellowish orange plumage covering other parts of the head. The lower breast has yellowish tints, with the abdomen turning orange. The tips of the primary feathers on the St. Thomas Conure are blue, and the underside of the wings range from an olive green to yellow, as does the underside of the tail. The feet are grey.
St. Thomas Conures average 10 inches (25 centimeters) in length at maturity. Though there are many subspecies, with different color variations, this subspecies, like the others has mostly green feathers. The ring around the eye area is white, with the iris being yellow. The bill of the St. Thomas Conure is black. The young Conures have a lighter color bill on top, and brown cheeks. The throat area, as well as the upper breast is usually an olive brown. Immature individuals have a green breast. They have blue crowns, with yellowish orange plumage covering other parts of the head. The lower breast has yellowish tints, with the abdomen turning orange. The tips of the primary feathers on the St. Thomas Conure are blue, and the underside of the wings range from an olive green to yellow, as does the underside of the tail. The feet are grey.