COCKATOOS. 



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Another section {Cafyptorhjmclms), likewise peculiar to Australia, 

 comprises many species that live in small flocks in wooded dis- 

 tricts, feeding on the fruits and bark of the eucalyptus ; these, 



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Fir,. 129. — The Sulphur-crested Cockatoo {Cacatiia siilplmrea). 



from their wasteful habits, destroy much more than they consume. 

 Their flight is heavy, but from their extreme shyness it is diffi- 

 cult to approach them. They are very destructive to certain 

 trees by cutting off the smaller branches and the unripe fruit. 



The members of another division {Nestoj^) have the bill much 

 lengthened. They are met with both in Australia and New 

 Zealand, usually frequenting trees, where they seek for the nuts 

 and berries on which they partially subsist, but they likewise feed 

 upon bulbous roots, digging them up from the swampy ground. 



