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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. ;'..