74 CACATUID.S. 



the },'round. ami situated in hollow Itucalyptus trees. The e.t;f^s are placed on top of the decayed 

 matter of the tree, about one foot to eiijhteen inches from the top of the hollow. Two eggs 

 are laid, one apparently several days before the other, as they always appear in different stages 

 of incubation. Generally only one young survives, and it is not an uncommon thing to see two 

 old birds and one young flying about soon after the commencement of the breeding season. 

 These birds are migratory, leaving here for the coast about December and January, and returning 

 in .\pril or May in large flocks. They are not as plentiful as formerly, the advance of settlement 

 having driven them farther afield." 



The eggs are two in number for a sitting;, oval in form, and fairly smooth-shelled, with the 

 exception of a few limy e.xcrescences, but having numerous minute pittings ; they are dull white 

 and lustreless, .^n egg taken on the i8th August, i8gg, by Mr. Bruce W. Leake, of Kellerberrin, 

 Western Australia, measures: — Length i-8.S x 1-35 inches. A set of twoeggs in the collection 

 of Mr. H. L. White, of Belltrees, Scone, New South Wales, also taken by Mr. Leake at 

 Kellerberrin on the 30th August, 1897, measure: — Length (.\) rSj x 1-37 inches; (B) i-8i x 

 I '32 inches. 



According to Mr. Carter's notes and Mr. Leake's obser\ations August to October constitutes 

 the normal breeding season of this species. 



Oeri-as 0-<fiuI_iIjOOE^I3:-A.XjO^T, Lesson. 

 Callocephalon galeatum. 



GANO GANG COCKATOO. 

 Ptiit/drits (/aleatun, Lath., Inrl. ()i-n,, .Suppl., p. xxiii. (ISOl'). 



Calloceplialnii (jaleat.uiii, Gould, Bds. Austr., fol. Vol. V., pi. 14 (1848); id., Handbk. Bds. Au.str., 

 Vol. II., p. 29 (18G5) ; Salvad., Oat. Bds. Brit. Mus., Vol. XX., p. 113 (1891) ; Sharpe, 

 llaiKl-i. Bds,, Vol. IT., p. 10 (1900) ; Salvad., Ibis, 190(5, p. 12G. 



Adult MALK. — (Icnin-al i-nhiur ithurf, <l(irk ,-'/n/i/-t//'f)/, alJ tin' fidt/n is iii<in/i m'l/ ii-itli tisliij-n-liili- ; 

 iijijirr iriiti/ i-orrrU li/i'' /lie lidck, ijuills slatij iji-fy, /m/er on the (jrealer /lor/iou of tin' jtriiiiaries, the. 

 yri'.iiter ir'uiy ronrls anil outer ivebs of tin' .•<woitdarii:s fa'tidlij unshed ivith pale .•<nlpliu7-i/i-lloir : tail 

 dark shUy-iirry .• fon-hend, croira of tin' heiid, crest aiid sides of the head sciirlel : under siirface. dull 

 s/ati/ i/ni/, (dl t/n fei it hers in distinctly iiiari/ined irith faint snl/ilinroiisye/lon; those on the Joirer 

 brriist, abdomen., and under tail -coverts having also an ajiical maryin of dull red : hill n-lntishdiorn 

 colour, iirri/isli at the base of the upper mandible : leys and feet mealy yreyishdAiiek ; iris dark broicn. 

 Total lenyth in the flesh H inches, winy '.1-9, tail (i, hill, 1-2 tarsus 0-7. 



AliULT FKMALK. — Reseinbles the niale, but has the head and erest yrey, the feathers of the back, 

 ■rump, upper tail -coverts and the irinys crossed with yreyish-irhite bands, the tail-feathers crossed u-ith 

 freckled bandu ofliyhier grey, anil the feathers of the under parts crossed with three ivhite or yellon-ish- 

 white bands, and broadly margined around the tip with dull .•icnrlet, the snb-apienl baud beiny of a 

 clean r yelloir on, the lower breast .■ under tiiil-eorerts yrey crossed ?iHth pab' sulplturous-yrllow bamls, 

 and which are ff'ckleil with yrey. 



Diitnbntioii — New South Wales, X'ictoria, Tasmania. 

 ^Tp\HERE are more specimens of the present species in the .-\ustralian Museum Collection 

 J- than of any other .Australian Cockatoo. Numerically, in its haunts, it is far from 

 common, but very little is known of its nesting habits, and its eggs are among the rarest of any 

 of the .Vustralian Psittaci. Of the thirty odd specimens in the .Australian Museum, and which 

 exhibit all stages of plumage, which is subject to much variation in the under parts, all, with the 

 exception of one specimen from Victoria, were obtained in different parts of New South Wales, 

 and nearly all in districts South of Sydney. I have never seen in any collection a specimen from 



