U. S. NATIONAL MUSEUM 



BULLETIN 162 PLATE 48 



Southern White-tailed Ptarmigan Chick 

 Gunnison County, Colo., July 8, 1902. Presented by E. R. Warren. 



Larger Chick of Washington White-tailed Ptarmigan 

 Mount Rainier, W ash . August 2, 1929. Presented by Dr. Oayle B. Pickwell. 



