1918. CATALOGUE OP BIRDS or THE AMERICAS CORY 23 



*Bubo virginianus megellanicus Daudin. MAGELLAN'S GREAT HORNED 



OWL. 

 Bubo magellanicus DAUDIN, Trans. d'Om., II, 1800, p. 210 (Strait Magellan); 



SCOTT and SHARPE, Rep. Princeton, Univ. Exped. to Patagonia, Vol. II, 



Pt. IV, 1915, p. 683. 

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



p. 739, in key. 

 Bubo nacurutu (ViEiLL.), BRABOURNE & CHUBB, Bds. S. A., 1, 1912, p. 74, No. 684. 



Range: Southern South America, north to Peru, Paraguay and 

 southern Brazil. 

 i: "Patagonia." 



Bubo virginianus deserti (Reiser).* DESERT GREAT HORNED OWL. 



Bubo magellanicus deserti REISER, Anz. Akad. Wien., No. XVIII, 1905, p. 324 

 ("Salitres bei Joazeiro," N. E. Brazil). 



Range: East and Northeast Brazil. 



Bubo virginianus scotinus b Oberholser. VENEZUELAN GREAT HORNED 

 OWL. 



Bubo virginianus scotinus OBERHOLSER, Bull. Mus. Brooklyn Inst., Art & Sci., I, 



No. 14, 1908, p. 371 (Cacare Orinoco, Venezuela). 

 Bubo scotinus CHUBB, Bds. Brit. Guiana, I, 1916, p. 285. 



Range: Venezuela. 

 Bubo virginianus elutus c Todd. COLOMBIAN GREAT HORNED OWL. 



Bubo virginianus elutus TODD, Proc. Biol. Soc. Wash., XXX, 1917, p. 6 (Lorica, 

 Bolivar, Colombia). 



Range: Colombia. 



Bubo virginianus nigrescens d (Berlepsch). ECUADOR GREAT HORNED 



OWL. 

 Bubo nigrescens BERLEPSCH, Proc. Zool. Soc. Lond., 1884, p. 309 (Mountains of 



western Ecuador, Ceche 10,000 ft.)- 

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



p. 738, in key. 



Range: Western Ecuador. 



Bubo v. deserti REISER: General color showing but little or no ochraceous 

 brown, being largely gray mixed with whitish and blackish; decidedly paler than 

 true B. v. magellanicus DAUD. 



b Bubo v. scotinus OBERHOLSER: Upper parts blackish brown, much mottled, 

 with tawny ochraceous buff and buffy white; barring of under parts much heavier 

 and general color much darker than in B. v. magellanicus DAUD. 



Bubo v. elutus TODD: Similar to B. v. scotinus OBERHOLSER, but upper parts 

 paler and less rufescent; legs more heavily mottled with dusky; differs from B.I. 

 mesembrinus OBERHOLSER, in being much less rufescent above and below. 



d Bubo v. nigrescens (BERLEPSCH): Little, if any, rufous and tawny in plumage; 

 feet slightly mottled; general plumage very dark; wing, about 3.50 mm. 



