176 CHECK-LIST OF NORTH AMERICAN BIRDS. 



g. Bubo virginianus heterocn^mis (Obbrholseh). Labrador Homed Owl. 



[375/.] 



Asia magellanicus heterocnemis Obbkholser, Proc. U. S. Nat. Mus., 

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



Range. — Northern Ungava and Labrador. 



h. Bnbo virginianus algistus (Oberhglseb). Saint Michael Homed Owl. 



[375ff.] 



Asia mageUanicus 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 LinnjEtjs. 



Nyctea nyctea (LiNN.iEus). Snowy OwL [376.] 



Strix nyctea Linnaeus, Syst. Nat., ed. 10, 1, 1768, 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 Dum£eil. 



Swrnia DtTMEKiL, Zool. Analytique, 1806, 34. Type, by subs, desig., 

 Strix funerea auct.= Strix ulula LinN/BTjs (Gray, 1841). 



Siimia ulula (LiNNiEus). 



Range. — Northern part of Northern Hemisphere. 



a. [Sumia ulula ulula (LiNNiEus). European Hawk Owl. [377.] 

 Strix vlula Linn^us, Syst. Nat., ed. 10, 1, 1758, 93. (Sweden.) 

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



