122 ELEMENTS OF OENITHOIOGT. 



Some forty birds known as Drongo Shrikes are fly-catching 

 ones which associate in flocks. They are Old-World forms, 

 mostly with long, forked tails, -whereof the Black Drongo Shrike 

 {Buchanga atra) may stand as an example. 



The toothed and powerful beak of the typical Shrikes would 

 seem by itself enough to show that such creatures were Birds of 



Fig. 132. 



The Drongo Shrike {Buchanga atra). 



Prey, and we may shortly proceed to notice forms which all 

 agree to be Birds of Prey par excellence. Before doing so, how- 

 ever, we may note a very curious form— a bird with such a 

 hooked and Hawk-like bill that we might be disposed to 

 include it in the predaceous set. The creature referred to is the 

 Oil-bird (Steatornis caripensis) of the island of Trinidad. But 

 this Bird, with so formidable a bill, is said to feed on the fruits 



