Vo1 - x l Hasbrouck, Distribution of North American Megascofs. 2^ 

 1S93 J 



(Spec. Bull. No. 1, U. S. N. M., 1892, 355) mentions « 

 Screech Owl taken by Macoun in northwestern Manitoba winch 

 he says is -presumably referable to this race." The Rocky 

 Mountain Screech Owl is a bird of the boreal and transition 

 zones, and although no records are known for its occurrence in 

 Wyoming, it undoubtedly is to be found in the central and 

 western portions of the State. The records place it at an ele- 

 vation not greater than six thousand feet, but as they are 

 extremely scarce it is difficult to give its true vertical range, and 

 it probably occurs in many portions of the State on the eastern 

 slope of the Rockies. 



It has been reported from the following localities. 

 Colorado. Boulder (Mrs. Maxwell, spec in U. S. Nat. Mus ) Denver 

 (AW. Anthony, per Bendire, Auk, 1889, 301); Boulder and Larger 

 Cos. (Bendire, Special Bull. No. 1, U. S. Nat. Mus. 1892, 364). 

 Montana. Fort Custer (Bendire, Auk. VI, 1889. 301). 



Megascops asio trichopsis {WagL). Mexican Screech 



Owl. 



This is the earliest form distinguished from asio, and one of 

 the most peculiar in distribution ; being found on the peninsula 

 of Lower California, in central Arizona and east to central Texas, 

 and far down the Mexican plateau. Until the present year trt- 

 chopsis was not known east of New Mexico, but recently while 

 examining some material collected by myself in Palo Pinto 

 County, Texas, in 1SS8, two Screech Owls collected on Septem- 

 ber Q were pronounced by Mr. Ridgway to be unquestionably 

 this form, one of them typical. A third specimen, a young bird 

 taken at Lampasas, Texas, on July 3, 18S7, also resembles in- 

 chotsis so much that I have no hesitation in pronouncing it to be 

 the same. These records extend the range of tricho^s some 

 three or four hundred miles to the east, making doubtful the true 

 status of some central Texas specimens that have not undergone 

 comparison. In Mexico the only record for this form is at 



i M r L M. McCormick, who collected in the Black Hills in Dakota the past fall 

 I' ♦ win, heard a Screech Owl on several occasions, wh.ch he was 



^ te T2JT3itt ^ i-tance known of the occurrence of anv of the 

 genus from this region. The bird was presumably of this spec.es. 



33 



