176 CHECK-LIST OF NORTH AMERICAN BIRDS. 



g. Bubo virginianus heterocnSmis (OBERHOLSER). Labrador Horned Owl. 



[375/.] 



Asio magellanicus heterocnemis OBERHOLSER, Proc. U. S. Nat. Mus., 

 XXVII, 1904, 187. (Lance au Loup [ = Wolf Bay], Labrador.) 



RANGE. Northern Ungava and Labrador. 



h. Bubo virginianus algistus (OBERHOLSER). Saint Michael Horned Owl. 



[375?.] 



Asio magellanicus algistus OBERHOLSER, Proc. U. S. Nat. Mus., XXVII, 

 1904, 190. (St. Michael, Alaska.) 



RANGE. Coast region of northern Alaska from Bristol Bay and the Yukon 

 delta northward. 



GENUS NYCTEA STEPHENS. 



Nyctea STEPHENS, General Zoology, XIII, ii, 1826, 62. Type, by tau- 

 tonymy, Strix erminea SHAW = Strix nyctea LINN^US. 



Ny cte a nycte a (LINNAEUS). Snowy Owl. [376.] 



Strix nyctea LINN^US, Syst. Nat., ed. 10, 1, 1758, 93. (Sweden.) 



RANGE. Northern parts of Northern Hemisphere. In North 

 America breeds on barren grounds from the islands of Bering Sea and 

 the Yukon delta to Melville Island and northern Greenland south to 

 central Mackenzie, central Keewatin, and northern Ungava; winters 

 from the Arctic coast south to the southern Canadian Provinces and 

 Montana, and irregularly to the Middle States and Ohio Valley, strag- 

 gling to California, Texas, Louisiana, North Carolina, and Bermuda. 



GENUS SURNIA DUMERIL. 



Surnia DUMERIL, Zool. Analytique, 1806, 34. Type, by subs, desig., 

 Strix funerea auct.= Strix ulula LINNAEUS (Gray, 1841). 



Surnia ulula (LINNAEUS). 



RANGE. Northern part of Northern Hemisphere. 



a. [Surnia ulula ulula (LINNAEUS). European Hawk Owl. [377.] 

 Strix ulula LINNAEUS, Syst. Nat., ed. 10, 1, 1758, 93. (Sweden.) 

 RANGE. Northern parts of Old World; casual in Alaska (St. Michael).] 



