U. S. NATIONAL MUSEUM 



BULLETIN 170 PLATE 39 









- 



ft 



^ '» " --Ma 



Teton County, Mont., June 13, 1 







19 ?^' 



"% 



A. I). DuBois. 



Adult on nest. 



Teton County, Mont., June 2 : . 1 



A. D. DuBois. 



g of different ages. 

 Short-eared Owls. 



