The Puerto Rican Parrot has green feathers with black edges, a red forehead and white ovals around the eyes. The underside of its feathers have a slightly different hue with the wings' underside feathers, which can be seen during flight, being brightly blue and the tail's being yellow-green. Sexual dimorphism is not present in this species. Aside from invasive DNA-sexing sexes can only be distinguished by behavioral differences during the breeding season.

Puerto Rican Parrots are secondary cavity nesters; they nest in tree trunk cavities that cannot be made by themselves. The species mainly nests in palo colorado trees (Cyrilla racemiflora) with other trees, such as the laurel sabino (Magnolia splendens) and tabonuco (Dacryodes excelsa) used to a lesser extent.

Puerto Rican Parrots reach sexual maturity at 4 years of age in the wild and at 3 years in captivity. The species usually mates for life

ahhhh! there sooo cute!