FAMILY TETKAOMD.E. GUOU.SE, I'AKTKIDGES, QUAILS, ETC. 153 



Depth of bill at base, .40 or more; uo black on Ion .s ; shafts of secondaries, 



black. Xewfoundland. 



Allen's Ptarmigan. 



LayopHs lagopus alli'ni. 

 See No. 241. 



Depth of bill at base, less than .40. 

 In summer: back, gra}-, mixerl 

 with black, or tawny l)uff, or 

 gray and white. In vjinter : 

 plumage, white; lores, usually 

 (not always) black. 



Rock Ptarmigan. 



Latjopus rupestria,, ujid rncps. 

 See No. 242. 



.Similar to Lrujopus nipestris, but in summer, back, inon; licavily b;incil. < nntined 

 to Northera Labrador aud Greenland. 



Reinhardt's Ptarmigan. 



Lagopus rupestris reinhardti . 



See Xo. 24.3. 



Depth of bill at base, less than .40; shafts of secondaries, not black, (outined 

 to island of Newfoundland. 



Welch's Ptarmigan. 



Lay opus xnelchi. 

 See No. 244. 



