New South Wales is the only one of the Australian colonies whence I have seen examples of this bird. Most naturalists will be anxious to know if, like the other Cuckoos, this species is parasitic; unfortunately however I am not able to clear up this point: but I possess an egg which has been recently sent me by Mr. Strange of Sydney; it is fully developed, and he informs me was taken by himself from the ovarium of a female after he had shot the bird. It is of a light stone-colour, marked all over, but particularly at the larger end, with irregular blotches of reddish brown, many of which are of a darker hue and appear as if beneath the surface of the shell; it is one inch eleven-sixteenths long by one inch and a quarter broad. The sexes are alike in plumage, but the female is somewhat smaller than the male. Head, neck and breast grey; all the upper surface, wings and tail greenish olive-grey, each feather largely tipped with blackish brown; tail crossed near the extremity by a broad band of black and tipped with white, which gradually increases in extent as the feathers recede from the centre; the inner webs are also largely toothed with white, which is bounded posteriorly with a broad streak of black; under surface of the wing and body buffy white crossed with indistinct bars of greyish brown, which gradually deepen in colour on the flanks and thighs; orbits and lores scarlet; bill light yellowish horn-colour; feet olive-brown. The Plate represents a male rather less than the natural size. [Illustration: EUDYNAMYS FLINDERSII. _J. Gould and H. C. Richter del et lith._ _Hullmandel & Walton Imp._ ] EUDYNAMYS FLINDERSII. Flinders’s Cuckoo. _Eudynamys Orientalis_, Vig. and Horsf. in Linn. Trans., vol. xv. p. 304. —— _Flindersii_, Lath. MSS. Ibid., p. 305, young. _Flinders’s Cuckoo_, Lath. Gen. Hist., vol. iii. p. 308. _Cuculus cyanocephalus_, Lath. Ind. Orn. Supp., p. xxx.—Shaw, Gen. Zool., vol. ix. p. 110. _Blue-headed Cuckoo_, Lath. Gen. Syn. Supp., vol. ii. p. 137.—Ib. Gen. Hist., vol. iii. p. 310. _Eudynamis Australis_, Swains. Anim. in Menag., p. 344.