TRICOLOUR-CHESTED COCKATOO. 
147 
The feathers forming the proper crest are long and 
acuminate, the tips bending forwards, their basal 
half crimson, divided by a bar of rich yellow, the re- 
mainder pure white. The whole of the body is 
white, tinged deeply with crimson upon the neck, 
breast, flanks, and under tail-coverts. The under 
surface of the wings is rich crimson-red. Its legs 
and toes are deep grey, the scales distinctly marked 
by lighter lines. Of its peculiar habits and economy 
we are unable to give any detailed account, which 
we greatly regret, as it is the knowledge of these in- 
teresting particulars, which point to the natural 
station of each individual, and mark the minute 
differences between nearly allied species, that give a 
zest to the study, and reward the naturalist for the 
drier and more technical parts of zoological science. 
Another Australian species is the Helmeted Cocka- 
too, Plyctolophus galeritus, enumerated by Mr 
Vigors and Dr Horsfield in their description of the 
Australian birds in the collection of the Linnsean 
Society ; and as its habits are presumed to resemble 
in many respects those of the other species, we quote 
their observations, as extracted from M. Caley’s 
Notes. “ This bird is called by the natives Car-away 
and Cur-iang. I have often met with it in large 
flocks at the influx of the Grose and the Hawkes- 
bury Rivers, below Mulgo’ey on the former river, 
and in the long meadow near the Nepean River. 
They are shy, and not easily approached. The flesh 
of the young ones is accounted good eating. I have 
