AVES. 113 



RAPTORES. STRIGES. 



STRIGIDAE. 



Strix arctica Swains. Swains, and Richardson, Fauna Boreali- 

 Amer., 1831, vol. 2, p. 87, pi. 32. 



Heavy woods or open country; nests probably in cavities of 

 trees, or on their branches. 



Me.— Accidental visitor: "Maine"; Brownfield, 1886. 

 (Knight supposes these to be "pale or faded individuals of the typi- 

 cal Horned Owl.") 



Mass.— Accidental visitor: Waltham, Nov. 30, 1867. 



215. Bubo virginianus heterocnemis (Oberholser) A. O. U. 

 comm. 



Labrador horned owl. 



Asio magellanicus heterocnemis Oberh., Proc. U. S. nat. mus., 

 1904, vol. 27, p. 187 "Lance au Loup, Labrador." 



Dense forests; nests in trees. 



Me — Accidental visitor: near Portland, Mar. 1870 (recorded as 

 B. v. saturatus). 



216. Nyctea nyctea (Linne) Lichtenstein. 

 Snowy owl; Arctic owl; White owl. 



Strix nyctea Linne, Syst. nat., ed. 10, 1758, vol. 1, p. 93. "in 

 Europa & America septentrionali." 



Surnia nyctea (Linne). Audubon, Birds of Amer., 1840, vol. 1, 

 p. 113, pi. 28. 'Egg, Bendire, 1892, vol. 1, pi. 12, fig. 19. 



Open country and barren grounds; nests on the ground. 



Me. — Uncommon fall and winter visitor. (Sept.) Oct. 15- 

 Feb. 



N. H. — Late fall and winter visitor, sometimes common; acci- 

 dental in summer (Concord, July). Oct. 10-April (July). 



Vt. — Irregular fall and winter visitor. Oct. 20. 



Mass. — Irregular fall and winter visitor, sometimes common. 

 (Oct. 12) Oct. 28-April 15 (May 20). 



