8o 



ELEMBlfTS OE OBNITHOLOGr. 



comes from "Western Africa, and the whole group, consisting as 

 it does of about twenty-five species, is entirely confined to that 



Pig. 82. 



The White-backed Coly {CoUue capensis). 



Continent, where they feed on fruit, frequenting the loftiest 

 trees. On the head is an elegant crest of feathers, which they 

 can elevate or depress. Almost all of them have a beautiful 



