The Western Rosella Platycercus icterotis, less commonly known as the Stanley Rosella, Earl of Derby's parakeet or Yellow-cheeked parakeet, is the smallest species of rosella

Rosella

A rosella is one of five to eight species of colorful Australian parrots in the genus Platycercus. Platycercus means "broad-tailed" or "flat-tailed", reflecting a feature common to the rosellas and other members of the broad-tailed parrot tribe...

 and is found in the South West

Southwest Australia

Southwest Australia is a biodiversity hotspot that includes the Mediterranean forests, woodlands, and scrub ecoregions of Western Australia. The region has a wet-winter, dry-summer Mediterranean climate, one of five such regions in the world...

 of Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. in Eucalypt forests and timbered areas. These are smallish parrots measuring 25–30 cm (9.8–11.8 in) in length and weighing from 28 to 80 g (0.987670938943135 to 2.8 oz), with an average of 63.3 g (2.2 oz).