Owls 



373f. Mexican Screech Owl (M. a. cineraceus). 



A gray color phase only. Similar to No. 373b, but 

 much grayer above; butt markings of No. 373b almost 

 wholly absent; below black bars more numerous and 

 narrower than in No. 373b. 



Range. — "New Mexico, Arizona, Lower California, and western 

 Mexico." (A. O. U.) 



37 3g. Aiken Screech Owl (M. a. aikeni}. A gray 

 color phase only. W. 6.5. Similar to 3731, but still 

 grayer; almost no buff above; black markings wider on 

 head, back, and underparts. 



Range. — "Plains, El Paso County. Colorado, south probably to 

 central New Mexico and northeastern Arizona." (A. O. U.) 



373h. MacFarlane Screech Owl (M. a. macfarlanei) . 



A gray color phase only. Ads. Of the size of kenni- 

 cottn, but with color and markings of betidirei. W. 7.2; 

 L3.8. (Brevvst.) 



Range. — "Eastern Washington and Oregon to western Montana 

 and probably intermediate regions, and north to the interior of 

 British Columbia." (Bailey.) 



373.1. Spotted Screech Owl (Megascops trtchopsis). 

 L. 7.7. Ads. Above mixed black, grayish brown and 

 buff; black prevailing on head; feathers of foreback 

 with buffy white spots on either side near the end; 

 below much as in No. 373f. 



Range. — Southern Arizona and southward into northern Mexico. 



373.2. Xantus Screech Owl (Megascops xantusi . 

 W. 5.3. Ad. rj\ Above drab, back tinged with pink- 

 ish rusty and faintly vermiculated with reddish brown; 

 breast paler ashy faintly suffused with pinkish or 

 rusty; belly whitish; underparts finely barred with red- 

 dish brown and streaked with clove-brown. (Brewst.) 



Range. — Cape Region of Lower California. 



374. Flammulated Screech Owl (Megascops flam- 

 meola). L. 7. Ads. Ear-tufts small; eye surrounded 

 by rusty, then by gray; crown, nape and tips of scap- 

 ulars largely rusty; neck band rusty. 



Range. — Mountains of Guatemala north to Colorado (n speci- 

 mens, 7 from Boulder County, Cook), west rarelv to California (a 

 specimens). 



374a. Dwarf Screech Owl (M.f. idahoensis). Sim- 

 ilar to No. 374, but slightly smaller and paler, es- 

 pecially on underparts where ground color is white and 

 black markings are restricted. 



Range. — Idaho, eastern Oregon and California (San Bernardino 

 Mountains, 3 specimens, Grinnell). 



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