Measuring 27–32 cm (10.5–12.5 in) in length with a 30–42 cm (12–16.5 in) wingspan, and weighing 50–60 g (1.8–2.1 oz), the mulga parrot is a medium-sized parrot of slim build and long tail. The species is sexually dimorphic, the sexes differing markedly in plumage. The male mulga parrot is multicolored, from which the alternate common name many-coloured parrot is derived. It is a bright green overall, with a bluish tinge on the neck and above the eye, and paler on the breast. The rump is light green. The forehead is yellow and there is a red patch on the back of the head. The lower belly and thighs are yellowish marked with orange-red and the wings greenish apart from the yellow median wing coverts and blue outer webs of primaries. The long tail is an assortment of colours: the two long central feathers are dark blue tinged with green, the outer feathers are blue shading to white and there is some red on the upper tail coverts. Its bill is a blue-grey edged with black, and iris is brown. The female is duller overall, with an olive-brown head and chest, duller yellow forehead and red patch on the back of the head, and pale green belly, and more brown-grey bill. It has a red shoulder. In 1955, British evolutionary biologist Arthur Cain reviewed various described subspecies and found none were valid. Learn more about Mulga Parrot