KEY TO THE FAMILIES. 
(Referring only to North American Species.) 
A. Head feathered, tarsi bare, or partly or | PARTRIDGES AND 
completely feathered. No spurs on tarsi, GROUSE, 
Plumage not iridescent. Tetraonide. 
#8. Head and upper part of neck, bare. Tarsi 
always bare. Spurs on tarsi of male. 
Plumage iridescent. 
KEY TO SUBFAMILIES. 
} WILD TURKEYS. 
\ Phastanide. 
A. No spurs on legs. 
a. Nasal fossee and tarsi bare. Sides of toes ) AMERICAN PAR- 
not pectinated. Cutting edge of mandible | TRIDGES. 
more or less distinctly serrated near the | Odontophorine 
tip. Page 19. 
6. Nasal fossee densely feathered, Tarsi GROUSE AND 
and toes partly, or completely covered PTARMIGAN, 
with feathers. Sides of toes pectinated. | Tetraonine. 
Cutting edge of mandible not serrated. Page 74. 
WILD TURKEYS. 
- Meleagrine. 
Page 172. 
&. With spurs on tarsi of male. 
189 
