86 How to Sex Cage Birds. 



Hunting Cissa (Cissa venatoria). 

 Here, again, the female has the stronger bill. 



Wandering Tree-Pie (Dendrocitta rufa). 



The female is browner than the male, and has a much stronger 

 bill. 



Chinese Tree-Pie [Dendrocitta sinensis). 



This species is somewhat abnormal, the male having a slightly 

 heavier bill than the female ; he lias more blue in his plumage. 



Himalayan Tree-Pie [Dendrocitta himalayensis). 



The female is generally less grey than the male, and has the 

 heavier bill. 



Chinese 13luk Magpie (Cyanopolius cyanus). 



Tn the female the bill is much shorter and less pointed than that 

 of the male. 



Spanish Blue Magpie [Cya/nopoUus cooki). 



The bills of the sexes differ as in the preceding species. 



Common Magpie {Pica rustica). 



The female is slightly smaller and duller than the male, has a 

 shorter and distiuctly heavier bill. 



TTla^p 





