PLATYCERCUS ICTEROTIS, Wagi. 
The Earl of Derby’s Parrakeet. 
Psittacus icterotis, Temm. in Linn. Trans., vol. xiii. p. 120. — Knhl, Consp. Psitt. in Nova Acta, etc.,p. 54. no. 86. 
Platycercus Stanleyii, Vig. in Zool. Journ. 1830, p. 274. 
icterotis, Wagl. Mon. Psitt. in Abhand. etc., p. 530.— Gould in Syn. Birds of Australia. 
Platycercus icterodes, Bourj. St. Hil. Supp. to Le Vaill. Hist. Nat. des Perr., pi. 30. 
Go6td-un-gootd-un, Aborigines of the lowland, and 
Moy-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 describe!'. 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 beautv, and 
enlivened with floeks 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 eharacter 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. 
Crown of the head and back of the neck, chest and all the under surface scarlet ; cheeks and thighs 
yellow ; feathers of the back black, bordered with green, yellow, and in some instances scarlet ; rump and 
upper tail-coverts yellowish green ; shoulders and outer edges of the primaries blue, the inner webs and tips 
of the latter blackish brown ; two middle tail-feathers green ; the remaining feathers light blue tipped with 
white, with the basal portion of a darker blue tinged with green ; bill light horn-colour 5 feet and legs dull 
ashy brown ; irides blackish brown. 
The young birds of both sexes are nearly of a uniform green, becoming parti-coloured as they advance in 
age ; the scarlet of the crown and abdomen, and the yellow of the cheeks gradually taking the place of the 
green colouring of youth. 
It is questionable whether the female, like the female of P. eximius, ever attains the fine plumage of the 
male. 
The Plate represents the two sexes of the natural size. 
