82 Wyofning Experiment Station. 



at Cheyenne. Gary noted this bird at Newcastle as follows : 

 "On June ii, 1900, while walking down the rocky bed of a 

 deep canon, three of these little owls flushed from the thick- 

 est top of a small cedar tree where they had been taking their 

 noonday siesta, and alighted further down the canon. I se- 

 cured one of them, which proved to be an immature bird, with 

 breast and belly of a deep fawn color." There are two skins 

 in the University collection; one was taken , on the Laramie 

 plains and the other in Carbon county. 



Z72)^ Megascops asio maxwelliae (Ridgw.). 

 Rocky Mountain Screech Owl. 



Resident; but very little is known of this bird in Wyo- 

 ming. A. O. U. Check List, 2nd Ed., gives the geographical 

 distribution, "Rocky Mountains from Colorado to Montana," 

 which would indicate that it ought to be quite abundant. I 

 travel a great deal and often remain in the field for several 

 ■weeks at a time, and in seventeen years' experience I have 

 never heard any kind of a Screech Owl in Wyoming. Judg- 

 ing from this I am inclined to think that they are very rare. 

 Jesurun took one of these birds on Jan. 29, 1897, at Douglas, 

 and this is the only one that I have ever seen in Wyoming. 

 Bond has taken this bird at Cheyenne. 



375 a. Bubo virginianus pallescens Stone. 

 Western Horned Owl. 



Resident and common. I am inclined to believe that the 

 records of the Horned Owls in Wyoming are badly mixed. 

 Formerly all were referred to the Great Horned Owls. Prob- 

 ably the majority of early records have been placed under this 

 head. The food of this variety is practically the same as the 

 eastern form. The record of a stomach is from Wood, who 

 took one at Bridger Pass that contained a wood rat, a meadow 

 mouse and a white-footed mouse. Fisher (Hawks and Owls 

 of the United States, p. 176) refers to the food of the Horned 

 Owl as follows : 



