30 



subfamily Odontophorince (about sixty species) is strictly American, 

 and includes our Bob-whites and other commonly so-called Quails 

 and Partridges ; the group is numerously represented in tropical 

 as well as in temperate America. (See Cases D and I.) The 

 subfamily Tetraoniuce (about twenty-five species) includes the 

 Ptarmigans and Grouse, and is confined to the temperate and 

 arctic portions of both hemispheres. They differ from all the 

 foregoing in having the legs generally heavily feathered to the toes. 



<St'ii^'^ 



. .■'«i^-^-:..^2=3^f.S ¥^-^^t'C^ 



Fig. lo. A Prairie Minuet. 



The Capercaillie and the Sage Grouse are the largest and most 

 noteworthy forms of the group. (See Cases D and O.) Our 

 Prairie-Hen is a familiar and interesting example of the group, 

 remarkable for its fantastic nuptial dances, as represented in 

 Fig. lo. 



The Ruffed Grouse (Fig. ii) of the northeastern United States 

 and Canada is perhaps better known under the names of Partridge 

 (in New England) and Pheasant (in Virginia and adjoining States). 



