148 CHECK-LIST OF NORTH AMERICAN BIRDS. 
375. Bubo virginianus (GMEL.). 
Great Horned Owl. 
Strix virginiana GMEL. S. N. I. i. 1788, 287. 
Bubo virginianus Bonar. Geog. & Comp. List, 1838, 6. 
(Bias Cian 7s Raon he abo) 
Geoc. Dist.— Eastern North America, west to the Mississippi 
Valley, and from Labrador south to Costa Rica. 
375 a. Bubo virginianus subarcticus (Hoy). 
Western Horned Owl. 
Bubo subarcticus Hoy, Pr. Ac. Nat. Sci. Phila. VI. 1852, 211. 
Bubo virginianus B subarcticus RipGw. Orn. goth Par. 1877, 572. 
[B 48, part, C 3174, part, R 4054, part, C 463, part] 
Groc. Dist.— Western United States, from the Great Plains 
westward; southward to the Mexican tablelands; east, casually, 
to Wisconsin and Illinois; north to Manitoba and British Columbia. 
375 6. Bubo virginianus arcticus (SwalIns.). 
Arctic Horned Owl. 
Strix (Bubo) arctica Swains. in Sw. & Ricu. Fauna Bor. Am. II. 
1831, 86, pl. 30. 
Bubo virginianus var. arcticus Cass. Illust. B. Cal. etc. 1854, 178. 
[B 48, part, C 3174, part, R 4054, C 463, part.] 
Groc. Dist.— Arctic America, chiefly in the interior, south, in 
winter, to Idaho, Montana, Wyoming, and South Dakota. 
375 c. Bubo virginianus saturatus Ripew. 
Dusky Horned Owl. 
Bubo virginianus saturatus RrpGw. Orn. 4oth Par. 1877, 572, 
foot-note. 
[B 48, part, C 3178, R 4056, C 464.] 
Geoc. Dist.— Pacific coast region, from Monterey Bay, California, 
northward to Alaska and eastward to Hudson Bay and Labrador ; 
southward through the mountainous regions of the West to Arizona. 
