262 BULLETIN 17 0, UNITED STATES NATIONAL MUSEUM 



northeastern North Dakota, southern Manitoba, and northwestern 

 Minnesota, and south to New Mexico; the Rocky Mountain screech 

 owl (0. a. maxwelliae), ranging through the foothills and adjacent 

 plains of the eastern Rocky Mountains from Saskatchewan and 

 Montana south to central Colorado; MacFarlane's screech owl (0. a. 

 macfarlanei) , occupying the interior of southern British Columbia 

 south to northeastern California, Idaho, and western Montana; 

 Kennicott's screech owl (0. a. kennicotti), occurring in the northwest 

 coast region from Sitka, Alaska, south to Washington; Brewster's 

 screech owl (0. a. brewsteri), found in southwestern Washington, 

 Oregon, south to Humboldt County, Calif.; the California screech 

 owl (0. a. bendirei), occupying the coast district of California from the 

 northwestern part south to the region of San Francisco Bay; the 

 Pasadena screech owl (0. a. quercinus), the western slope of the Sierra 

 Nevada south of Mount Shasta, southern California west of the desert 

 areas, and the Pacific side of Baja California south to latitude 30°30' 

 N.; the Mexican screech owl (0. a. cineraceus), occurring in Baja 

 California and Sonora, north to central Arizona, southern New Mexico 

 and central western Texas; the saguaro screech owl (0. a. gilmani), 

 found in the Lower Austral Zone of southern Arizona, the Imperial 

 Valley of California, and northeastern Baja California; and Xantus's 

 screech owl {0. a. xantusi), which occupies a restricted range in the 

 Cape region of Baja California. 



Migration. — There is no indication that screech owls perform any 

 regular seasonal migrations, and they are, in fact, one of the most 

 sedentary of all owls. This is abundantly demonstrated by the re- 

 cords of those that have been banded and subsequently recovered. 

 With few exceptions points of banding and recovery are in the same 

 immediate area. One banded on Staten Island, N. Y., on October 

 27, 1925, was recaptured at nearly the same spot, eight years later, 

 on July 11, 1933. 



The Biological Survey files contain only two records of banded 

 screech owls that show travels of considerable length. One of these 

 birds was banded at Ashton, Iowa, on December 16, 1928, and was 

 recovered in January 1930 at Tabor, S. Dak., nearly 100 miles north- 

 east. The other was banded at Glenwood, Minn., on March 25, 

 1932, and was retaken on December 20, 1932, about 200 miles to the 

 southwest at Emmetsburg, Iowa. 



Casual records. — According to MacSwain (1908) the species has 

 occurred once on Prince Edward Island. On June 27, 1899, Osgood 

 saw a small "reddish-brown owl" thought to be this species at Caribou 

 Crossing, Yukon Territory. 



There are two doubtful and incomplete records reported for England. 

 One is said to have been taken at Kirkstall Abbey, Yorkshire, in 1852, 

 and another at an unknown date near Yarmouth. 



