ROCK PTARMIGAN. 



302. La go pus rupcstris rupestris. 14 in. 



In winter, white with black tail and black 

 spot in front of the eyes. In summer brown- 

 ish-gray and white, barred with black. 



Range. From southern Ungava and Mack- 

 enzie northward. Welch Ptarmigan (L. 

 welcU) found in Newfoundland is still grayer 

 in summer. White-tailed Ptarmigan (L. leu- 

 curus) found in the Rocky Mountains is pure 

 white including the tail. 



PRAIRIE SHARP-TAILED GROUSE. 

 308b. Pedioecetes phasianellus campestris. 



Grayish-brown and buff, marked with black 

 and white as shown. Middle tail feathers 

 lengthened. 



Nest. On the ground. Eggs brownish, 

 finely specked all over with dark brown. 



Range. Manitoba south to Kans. and 

 northern 111. Sharp-tailed Grouse, slightly 

 larger, occur from Ungava west to British 

 Columbia. 



94 



