160 How to Sex Cage Birds. 



no doubt that an examination and comparison of living male and 

 female would reveal differences, even if none could be discovered in 

 the dried skins. 



As I do not regard the Game-birds, Plovers, Waders, or true 

 Aquatic birds as cage-birds, this will bring to a close my notes on 

 sexual characters. Much more study is needed to bring our 

 knowledge of even these external characters to anything approaching 

 perfection, but as a step in the right direction I hope my efforts 

 will be useful to bird students, whether agriculturists or cabinet- 

 workers. 



