The mulga parrot (Psephotellus varius) is endemic to arid scrublands and lightly timbered grasslands in the interior of southern Australia. The male mulga parrot is multicolored, from which the older common name of many-coloured parrot is derived.
The Mulga Parrot measures about 27–32 cm in length with a 30–42 cm wingspan, and it weighs 50–60 g, 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 sometimes also has a red shoulder.