The western rosella (Platycercus icterotis), or moyadong, is a species of parrot endemic to southern Western Australia.

The damage attributed to the species at introduced fruit and grain crops saw them declared as a pest and permitted by the state to be killed or captured. They are more placid and sociable than rosellas of other Australian regions from which they are geographically isolated and have become internationally popular as an aviary bird. Their history in aviculture begins with two 1830 lithographs of live specimens in England by Edward Lear. Successful breeding in captivity began there during the early 20th century.