200 BUJ-/LETIN 133, UNITED STATES NATIONAL MUSEUM 



of the yoimf>- was heard constantl}^ at night. A barn owl was noted 

 in the town of Tunny an, Mendoza, about 3 in the morning on March 

 26, 1921. 



''^t7^ix ferlata Lichtenstein, 1819"' is antedated by ^itrix perlata 

 Vieillot/^^ 1817 for another species so that the name for the South 

 American barn owl becomes tuidara as indicated by Mathews."^ 



Family STRIGIDAE 



GLAUCIDIUM BRASILIANUM BRASILIANUM (Giaeiin) 

 Strix brasiliaiia Gmelin, Sys-t. Nat., vol. 1, pt. 1, 178S, i>. 289. (Brazil.) 



An adult female was talien Februar}^ 5, 1921, near Lazcano, Uru- 

 guaj'', in a heavy thicket of lovf trees and shrubs that bordered the 

 Rio Cebollati. The bird was frightened out as I forced my way 

 through the dense cover, and flew to another perch a few meters 

 away to turn and peer at me. The tail had been entirely molted 

 and partly renewed and new feathers were appearing on the body. 

 Molt of the wing quills had not yet begun. 



GLAUCIDIUM NANUM VAFRUM Wetmore 



Glaucidiuiii uaiiiint vafriim Wetmoee, .lourn. Wa.^hington Acad. Sci., vol. 12, 

 AiTgust 19, 1922, p. 323. (Concon, Inteiulencia of Valparaiso, Chile.) 



A female was taken April 27, 1921, on a brush-grown hillside near 

 Concon, Chile, as it sunned itself on an open limb in the cool air 

 of early morning. The bird crouched with Avings slightly extended 

 and feathers flutiecl out so that it appeared twice natural size. The 

 eyelike spots in the back of the head were very prominent so that 

 their appearance was curious to an extreme.®*' The tip of the bill in 

 this bird was deep olive buff; base puritan gray, shading to deep 

 olive buff, the gray clear below, indistinct above; iris pale greenish 

 yelloAv. 



The form of this owl from central Chile differs from typical nanum 

 from the Straits of Magellan in broader, heavier dark bars on the 

 tail. The southern subspecies, typical nanum^ appears to range north 

 through the forested region to near Temuco, though there it shows 

 strong evidence of intergradation toward vafrum. Glaucidium 

 nanu7)i is closely allied to G. hrasilianum so that examination of the 

 subspecies composing the two groups, as they are now understood, 

 reveals that they are separated by a difference in depth of color alone. 

 The two subspecies composing nanum- differ from those attributed to 



'•'Strix peilata Liclitt'iistoin, Abb. Kon. Akad. Wiss. Berlin, 181G-17, 1819, p. 10(5. 

 (Brazil.) 



^* Strix periuta Vieillot, Is'ouv. Did. Hist. Xat., vol. 7, 1S17. p. 2G. 



'••Birds Austr., vol. 5, pt. 4, Aug. 30, 1916, p. fi71. 



^ For a striking representation and description of this peculiarity see .T. Koslowsky, El 

 Hornero, vol. 1, 1919, pp. 229-235, pi. ;'.. 



