The blue-winged parrot (Neophema chrysostoma), also known as the blue-banded parakeet or blue-banded grass-parakeet, is a small parrot found in Tasmania and southeast mainland Australia. It is partly migratory, with populations of blue-winged parrots travelling to Tasmania for the summer. The parrot is sexually dimorphic – the males have more blue on the wings and a two-toned blue frontal band on the head, while females are duller and have more green on the wings and a wingbar. Both sexes have predominantly olive-green plumage. Predominantly a feeder on the ground, the blue-winged parrot mainly eats seeds of grasses. It adapts readily to captivity.
Ranging from 20 to 24 cm long and weighing around 55 g, the parrot is sexually dimorphic—both sexes are predominantly olive-green. The adult male has a two-toned band across the face above but not reaching the eyes—ultramarine above and paler turquoise blue below. Its crown is yellowish, and throat and breast pale green and belly yellow, its wing coverts and under wing coverts are deep blue. The tail is blue-grey. The bill is blue-grey and the iris is brown. The adult female is duller with dull olive underparts and smaller blue on wings and less distinctive frontal band. Juveniles are dull olive green with slate-blue wings and no frontal band.