1918. CATALOGUE OF BIRDS or THE AMERICAS CORY. 21 



Bubo virginianus algistus (Oberhoher). ST. MICHAEL'S GREAT HORNED 

 OWL. 



Asia megellanieus algistus OBERHOLSER, Proc. U. S. Nat. Mus., XXVII, 1904, 



p. 190 (St. Michaels, Alaska). 

 Bubo virginianus algistus RIDGWAY, Bull. U. S. Nat. Mus., No. 50, VI, 1914, 



P- 750. 



Range: Coast district of northwestern Alaska, north of Alaska 

 Peninsula. 



*Bubo virginianus wapacuthu (Gmel.*). ARCTIC GREAT HORNED 

 OWL. 



Strix wapacuthu GMELIN, Syst. Nat., I, 1788, p. 290 (Hudson Bay region, North 



America). 

 Bubo virginianus articus Am. Orn. Union Check List, Ed. I, 1886, and Ed. 2, 



1895, No. 375b. 



Bubo virginianus subarcticus Am. Orn. Union Check List, 3 Ed., 1910, p. 175. 

 Bubo virginianus wapacuthu RIDGWAY, Bull. U. S. Nat. Mus., No. 50, VI, 1914, 



P- 751- 



Range: Northern and central Canada from Hudson Bay to Valley 

 of Mackenzie River, southward to northern Manitoba, and in winter 

 to Wisconsin, Idaho, etc. 



3: Canada (Alberta, Saskatchewan). 



Bubo virginianus lagophonus (Oberholser) . NORTH WESTERN GREAT 



HORNED OWL. 

 Asia virginianus logophonus OBERHOLSER, Proc. U. S. Nat. Mus., XXVII, 1904, 



p. 185 (Fort Walla Walla, State of Washington, U. S. A.). 

 Bubo virginianus logophonus RIDGWAY, Bull. U. S., Nat. Mus., No. 50, VI, 1914, 



P- 747- 



Range: Idaho, northeastern Oregon, eastern Washington, and 

 north to upper Yukon Valley, Alaska. 



*Bubo virginianus saturatus Ridgway. DUSKY HORNED OWL. 



Bubo virginianus saturatus RIDGWAY, Orn. Fortieth Parallel, 1877, p. 572, foot- 

 note (Sitka, Alaska); Id., Bull. U. S. Nat. Mus., No. 50, VI, 1914, p. 748; 

 SWARTH, Univ. California, Pub. VII, 1911, p. 65 (Douglas I., Alaska). 



Range: Pacific coast region, from northern California to southern 

 Alaska (Sitka, Douglas Islands, etc.). 

 3: "British Columbia." 



*Bubo virginianus heterocnemis (Oberholser) . LABRADOR GREAT 



HORNED OWL. 



Asia magellanicus heterocnemis OBERHOLSER, Proc. U. S. Nat. Mus., XXVII, 

 1904, p. 187 (Lauce au Loux, Labrador). 



