The male has the crown of the head and the cheeks glossy black; orbits and a narrow space leading to the nostrils naked and of a light buffy yellow; throat, chest and collar at the back of the neck dark slate-grey; all the upper surface, greater wing-coverts, outer webs of the secondaries, abdomen and flanks yellowish green; lesser wing-coverts, primaries, and inner webs of the secondaries slaty black, fringed with grey; vent and under tail-coverts white; tail black, the apical half and the outer web of the external feather pure white; the apical half of the second feather on each side white, the next on each side with a large spot of white at the extremity, and the six central feathers slightly fringed with white at the tip; bill black; irides very dark brown in some, red in others; feet flesh-colour. The female has the upper surface brown washed with olive, each feather with a darker centre, assuming on the head the form of striæ, the brown hue passing into yellowish green on the rump and upper tail-coverts; wings dark brown, the coverts and secondaries conspicuously, and the primaries narrowly, edged with greenish grey; under surface buffy white, each feather with a broad and conspicuous stripe of brown down the centre; flanks washed with yellowish green; under tail-coverts white, with a narrow stripe of brown down the centre; tail brown, each feather narrowly edged on the inner web with white, and all but the two lateral ones on each side washed with yellowish green; bill and feet lighter than in the male. The figures represent a male and a female of the natural size. [Illustration: CORCORAX LEUCOPTERUS. _J. Gould and H. C. Richter del et lith._ _Hullmandel & Walton Imp._ ] CORCORAX LEUCOPTERUS White-winged Chough. _Pyrrhocorax leucopterus_, Temm. Man. d’Orn., tom. i. p. 121.—Less. Man. d’Orn., tom. i. p. 384. _Fregilus leucopterus_, Vig. and Horsf. in Linn. Trans., vol. xv. p. 265.—Less. Man. d’Orn., tom. i. p. 384. _Corcorax Australis_, Less. Traité d’Orn., p. 325. —— _leucopterus_, G. R. Gray, List of Gen. of Birds, 2nd Edit., p. 52. _Waybung_, Aborigines of New South Wales.