KEY TO THE FAMILIES. 



{^Referring only to North American Species^ 



A. Head feathered, tarsi bare, or partly or 

 completely feathered. No spurs on tarsi. 

 Plumage not iridescent. 



B. Head and upper part of neck, bare. Tarsi 

 always bare. Spurs on tarsi of male. 

 Plumage iridescent. 



KEY TO SUBFAMILIES. 



A. No spurs on legs. 



a. Nasal fossae and tarsi bare. Sides of toes 

 not pectinated. Cutting edge of mandible 

 more or less distinctly" serrated near the 

 tip. 



b. Nasal fossae densely feathered, Tarsi 

 and toes partly, or completely covered 

 with feathers. Sides of toes pectinated. 

 Cutting edge of mandible not serrated. 



B. With spurs on tarsi of male. 



PARTRIDGES AND 

 GROUSE. 



TetraotiidcE. 



WILD TURKEYS. 



PhasianidcB. 



AMERICAN PAR- 

 TRIDGES. 



Odontophorince 

 Page 19. 



GROUSE AND 

 PTARMIGAN. 



Tetrao7iincE. 

 Page 74. 



WILD TURKEYS. 



MeleagrincE. 

 Page 172. 



189 



