THE BIRDS OF AUSTRALIA. 
Plyctolophus roseicapilhis Selby, Nat. Libr. Parrots, p. 131, 1836 ; Finseh, Die Papageien, 
Vol. I., p. 318, 1867; Ramsay, Proc. Linn. Soc., N.S.W., Vol. II., p. 192, 1878; 
Finseh, Ibis, 1882, p. 393. 
Eolophus roseus Bonaparte, Rev. Mag. Zool., 1854, p. 155. 
Eolophus roseicapillus Bonaparte, Comptes Rendus Sci. Paris, Vol. XLIV., p. 537, 1857 ; 
Broadbent, Proc. Roy. Soc., Queensland, Vol. III., p. 30, 1886 ; S. A. White, 
Trans. Roy. Soc., South Austr., Vol. XXXVIII., p. 427, 1914 (Central). 
Plissolophus roseicapillus Reichenow, Journ. fur Om., 1881, p. 26. 
Cacatoes roseicapilla roseicapilla Mathews, Nov. Zool., Vol. XVIII., p. 265, Jan. 1912. 
Cacatoes roseicapilla Jcuhli Mathews, id., p. 266 ; South Alligator River, Northern Territory. 
Cacatoes roseicapilla assimilis Mathews, ib., Laverton, Mid- west Australia. 
Cacatoes roseicapilla derbyana Mathews, ib., Derby, North-west Australia. 
Eolophus roseicapillus roseicapillus Mathews, List Birds Austr., p. 127, 1913 ; S. A. White, 
Emu, Vol. XIV., p. 186, 1915 (Centr. Austr.) ; id., ib., XV., p. 158, 1916 (S.A.). 
Eolophus roseicapillus Jcuhli Mathews, List Birds Austr., p. 127, 1913. 
Eolophus roseicapillus assimilis Mathews, id., ib. 
Eolophus roseicapillus derby anus Mathews, id., ib. 
Cacatua derbyana Barnard, Emu, Vol. XIII., p. 206, 1914 (N.T.). 
Distribution. Queensland (not Cape York District) ; New South Wales ; Victoria ; 
South Australia ; Central Australia ; Mid-west and North-west Australia ; 
Northern Territory. Not coastal save as a rare vagrant or escapee, as in Tasmania. 
Adult male. Entire back, wings, and tail hoary-grey like a patch on the sides of the breast, 
lower flanks, and under tail-coverts, much paler on the lower back, rump, upper 
tail-coverts, and outer webs of the greater upper wing-coverts and secondary 
quills, and darker towards the tips of the primary quills and tail-feathers : the 
second, third, and fourth primaries incised on the outer webs and the first, second, 
and third on the inner webs ; crown of head, hind-neck, and feathers below the 
eye pale pink, the feathers of the occipital crest have indistinct wavy bars ; throat, 
sides of face, breast, abdomen, axillaries and under wing-coverts deep rose-red. 
Iris brown, orbits red ; feet and tarsi mealy black ; bill white. Total length 
375 mm. ; cuhnen 25 ; wing 264, tail 135, tarsus 22. Figured. Collected at 
Derby, North-west Australia, on the 7th of May, 1911. 
Adult female. Similar to the adult male. 
Nest. A hole in a tree, lined with leaves pulled when green. 
Eggs. Clutch, four or five. White, 34-38 mm. by 25-28. 
Breeding-season. September and November (East). February and March (North-west). 
This beautiful and now familiar and well-known Cockatoo was not seen by 
the earliest voyageurs, as it does not frequent the coastal districts. I have not 
ascertained whence the first specimen was received, but it was first described 
by Vieillot from a specimen in the Paris Museum, and he gave the locality 
as “ Dans les Indes.” When Kuhl prepared his Monograph, apparently 
this was the only specimen known to him in all the museums of Europe, as 
he named his Psittacus eos from a specimen in the Paris Museum, the same 
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