52 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
Tarsus, entirely feathered; 
axillary plumes, smoky 
gray with white shafts, 
and tipped with white; 
the male has the breast 
‘ black ; the female has the 
NK \ breast tawny brown, black, 
NY 
Ww N \ and white. 
AS \ N\A) 
ASK FAW Canada Grouse. 
BA \ SY WY Spruce Partridge. 
CE AR : . 
Ws Dendragapus canadensis. 
a 
i Ps See No. 237. 
Section 2. The following species have the greater portion 
of the primaries white. 
"WA WWW 
Depth of bill at base, .40 or more; no black on lores; shafts of secondaries, not 
black. 
Willow Ptarmigan. 
Lagopus lagopus. 
See No. 240. 
