Crow-Like Birds. 



85 



Canada Jay (Perisoreus infaustus). 



The bill of the female is heavier and shorter than that of the male. 

 As with the preceding Jays, there is little, if any, difference of 

 plumage between the sexes. 



HEAD OF MALE AND FEMALE ENGLISH JAY. 



The Pies. 



Chinese Blue Pie (Urocissa sinensis). 



The female is smaller than the male, and her bill is shorter and 

 heavier in character. 



Occipital Blur Pie (Urocissa occipitalis). 



Tri this species the bill of the female is far stronger than that of 

 the male. 



