TRICOLOUR-CRESTED 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 naore technical parts of zoological science. 

 Another Australian species is the Helmeted Cocka- 

 too, Plyctolophus galeritusy 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 



