172 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Mackenzie south to northern British Columbia, northern Alberta, and Magdalen 

 Islands; south in winter to southern Canada but rare eastward; casual 

 south to Oregon, Colorado, Nebraska, Illinois, Pennsylvania, and New England. 



Cryptoglaux acadica (GMELIN). 



RANGE. Temperate North America. 



a. Cryptoglaux acadica acadica (GMELIN). Saw-whet Owl. [372.] 



Strix acadica GMELIN, Syst. Nat., I, i, 1788, 296. (Eastern North Amer- 

 ica.) 



RANGE. North America. Breeds from central and eastern British Co- 

 lumbia, Alberta, Manitoba, Quebec, New Brunswick, and Nova Scotia south to 

 central Arizona, New Mexico, southern Nebraska, northern Indiana, Pennsyl- 

 vania, and Maryland; winters south to southern California, Louisiana, Vir- 

 ginia (casually to the Carolinas), and Maine; casual or accidental in Mexico 

 and Guatemala. 



I. Cryptoglaux acadica scotsea (OSGOOD). Northwestern Saw-whet Owl. 

 [372a.] 



Nyctala acadica scotcea OSGOOD, N. Amer. Fauna, No. 21, 1901, 43. 

 (Massett, Queen Charlotte Islands, B. C.) 



RANGE. Queen Charlotte Islands and British Columbia, south to Puget 

 Sound region. 



GENUS OTUS PENNANT. 



Otus PENNANT, Indian Zoology, 1769, 3. Type, by monotypy, Otus 

 bakkamcena PENNANT. 



OtUS &SM) (LlNNvEUS). 



RANGE. Temperate North America, from southern British Colum- 

 bia and the northern border of eastern United States south to north- 

 ern Mexico. 



a. Otus asio asio (LINN^US). Screech Owl. [373.] 



Strix asio LINNJEUS, Syst. Nat., ed. 10, I, 1758, 92. (Carolina or Vir- 

 ginia.) 



RANGE. Eastern North America from Minnesota, Ontario, and New 

 Brunswick south to northeastern Texas and Georgia, and west to about the 

 100th meridian; accidental in England. 



