_Mȍy-a-duk_, Aborigines of the mountain districts of Western Australia. _Rose-hill_ of the Colonists. This beautiful little Parrakeet was first made known to science by M. Temminck, who described it under the name of _Psittacus icterotis_; which fact could not have been known to the late Mr. Vigors when he named it _Platycercus Stanleyii_, as a tribute of respect to the present Earl of Derby, at that time Lord Stanley; a tribute so merited, that I cannot but regret the necessity of depriving the bird of this distinctive appellation, and of restoring to it that of _icterotis_, as bound by justice to the first describer. But in still associating his Lordship’s name with this species, in the form of an English appellation, I feel I shall have the acquiescence of all ornithologists. From the little that is known of the history of this species it would appear that its range is very limited, the colony of Swan River in Western Australia being the only locality in which it has as yet been seen in a state of nature; there, however, it is one of the most common birds of the country, and, except in the breeding-season, may always be seen in large flocks, which approach so near to the houses of the settlers as frequently to visit their gardens and ploughed lands. It generally feeds on the ground, on the seeds of various kinds of grasses and the scattered grain of the farmer; but not unfrequently attacks and deals destruction among the ripe fruits of his garden, especially if they be left unprotected. If my readers wish to form an idea of the scenery of Australia, they must imagine a country the climate of which is second to no other, clothed with flowering trees and shrubs of the greatest beauty, and enlivened with flocks of hundreds of the attractive bird figured on the accompanying Plate, and numerous other members of the genus of equal beauty, together with the fire-breasted Robins, the lovely _Maluri_, with their resplendent metallic plumage, and many more of the feathered tribes conspicuous for the brilliancy of their hues and the elegance of their forms: they will then have some slight conception of the enchanting scene which it presents. Like most other members of the genus, the _Platycercus icterotis_ offers no difference in the colouring of the sexes of the same age. They do not acquire the adult plumage until the second year; during the first year they are green, which colour gradually gives place to the fine colouring of maturity. Its flight is of short duration, and consists of a series of rather rapid undulating sweeps. Its note is a feeble, piping kind of whistle, which is occasionally so much varied and lengthened as almost to assume the character of a song. The eggs, which are six or seven in number and of a white colour, are eleven lines long and nine and a half lines broad; they are deposited in the holes of large trees without any nest.