ORDER RAPTORES. 149 



GENUS NYCTEA STEPHENS. 



Nyctea STEPH. Gen. Zool. XIII. ii. 1826, 63. Type, Strix nyctea 

 LINN. 



376. Nyctea nyctea (LINN.). 



Snowy Owl. 



Strix nyctea LINN. S. N. ed. 10, I. 1758, 93. 

 Nyctea nyctea LIGHT. Nomen. Mus. Berol. 1854, 7. 



[B6i, 325, R 4 66, C479-] 



GEOG. DIST. Northern portions of the northern hemisphere. 

 In North America breeding wholly north of the United States; in 

 winter migrating south to the Middle States, straggling to South 

 Carolina, Texas, California, and Bermuda. 



GENUS SURNIA DUMERIL. 



Surnia DUMER. Zool. Anal. 1806, 34. Type, Strix ulula LINN. 

 [377.] Surnia ulula (LINN.). 



Hawk Owl. 



Strix ulula LINN. S. N. ed. 10, I. 1758, 93. 

 Surnia ulula BONAP. Cat. Met. Ucc. Eur. 1842, 22. 



[B , C , R 4070, C 481.] 



GEOG. DIST. Arctic portions of the Old World. Casual in 

 Alaska (St. Michaels). 



377 a. Surnia ulula caparoch (MULL.). 



American Hawk Owl. 



Strix caparoch MULL. S. N. Suppl. 1776, 69. 



Surnia ulula caparoch STEJN. Auk, I. Oct. 1884, 363. 



[B 62, C 326, R 407, C 480.] 



GEOG. DIST. Arctic America, breeding from Newfoundland north- 

 ward, and migrating in winter to the northern border of the United 

 States. Occasional in England. 



