_Leipoa ocellata_, Gould in Proc. of Zool. Soc., October 13, 1840. _Ngow_, Aborigines of the lowland; _Ng̏ow-oo_, of the mountain districts of Western Australia. _Native Pheasant_, Colonists of Western Australia. This beautiful bird is among the most interesting of the novelties which the little-explored regions of Australia have lately unfolded to us; since, by its discovery, and a knowledge of its habits, we are enabled to assign to its proper family (the _Megapodinæ_) the singular species figured under the name of _Talegalla Lathami_. The Ocellated Leipoa appears to be more peculiarly suited for a plain and open country than for the tangled brush; and it is most curious to observe how beautifully the means employed by Nature for the reproduction of the species is adapted to the situations it is destined to inhabit. A sketch of its economy, as far as it has yet been ascertained, has been sent me by Mr. John Gilbert, and is here given in his own words: “The following account of the habits, manners, and nidification of this bird have been detailed to me by G. Moore, Esq., Advocate-General, Mr. Armstrong, the aboriginal interpreter, and some of the more intelligent natives of Western Australia. Mr. Moore saw a great many of them about sixty miles north of Perth; but its most favourite country appears to be the barren sandy plains of the interior, 100 miles north and east of York. It is a ground bird, never taking to a tree except when closely hunted; when pursued it will frequently run its head into a bush, and is then easily taken. In its actions and manners it is very like the domestic fowl. Its food generally consists of seeds and berries. It has a mournful note, very like that of a pigeon, but with a more inward tone. The eggs are deposited in a mound of sand, the formation of which is the work of both sexes: the natives say they scratch up the sand for many yards around, forming a mound of about three feet in height; the inside being constructed of alternate layers of dried leaves, grasses, &c., among which the eggs are deposited to the number of twelve and upwards, and covered up by the birds as laid; or, as the natives express it, ‘the countenances of the eggs are never visible.’ The bird never sits upon the eggs; but when she has laid her number the whole are covered up, after which the mound of sand resembles an ant’s nest. The eggs are hatched by the heat of the sun’s rays, the vegetable lining of the hillock retaining sufficient warmth during the night: the eggs are deposited in layers, no two eggs being suffered to lie without a division. They are about the size of a fowl’s egg, and are white, very slightly tinged with red. The natives are exceedingly fond of them, and rob the mounds two or three times in a season; they judge of the probable number of eggs in the heap by the quantity of feathers lying around. If these are abundant, they know the hillock is full, when they