PASSERES. 



309 



In all the families of the order, there are nine or ten 

 primaries, and the secondaries are more than six. 



The birds are all insectivorous or granivorous, 



I 



a, 

 S3 



though some of the species ask fruit as a reward for 

 killing scores of insects. Yet it is notably the insect- 

 ivorous order. Other orders combine this food with 



