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378 BULLETIN 133, UNITED STATES NATIONAL MUSEUM
congregate in small bands. Their call is a rapid check cheeky and
the song a clear flutelike whistle that may be represented as tu tee-ee-
ee-te. Though on August 16 males in song were seen in pursuit
of females as though mating, no nests were found. The broad^
flattened bill is used as a pry by thrusting it in the ground and then
spreading the mandibles apart as described in Amhlycercus.
The Toba Indians called them kious to ta.
A male, taken September 17, had the bill and tarsus black, and
the iris Vandyke brown.
NOTIOPSAR CURAEUS (Molina)
Turdus Curaeus Molina, Sagg. Stor. Nat. Chili, 1782, p. 252. (Chile.)
Oberholser ^^ has proposed the name Notiopsar for Curaeus Sclater
(1862) because of an earlier Cureus Boie (1831) for a genus of
cuckoos.
The Chilian blackbird was seen at Concon, Chile, from April 25
to 28, 1921, where two were preserved as skins. The birds were found
in small flocks in open brush on hill slopes where their slender forms
and long tails at first sight suggested thrushes. This impression was
dispelled at once by their more or less agelaiine songs and their
clucking calls, and on closer acquaintance they proved quite similar
in habits to the Pseudoleistes from east of the Andes. Their usual
call is a high pitched whee whee followed by a low chnck a lah.
The bill, tarsus, and feet are black, the iris fuscous.
GNORIMOPSAR CHOPI CHOPI (Vieillot)
Agelaius chopi Vieillot, Nouv. Diet. Hist. Nat., vol. 34, 1819, p. 537. (Para-
guay.)
The chopi was common through the Chaco, where it was recorded
at Las Palmas, Chaco, July 16 to 30, 1920 (female taken July 16)
Riacho Pilaga, Formosa, August 7 to 20 (adult male shot August
17) ; Formosa, Formosa, August 24; Puerto Pinasco, Paraguay,
September 1 to 29 (adult male taken at Kilometer 80, September
18) ; and San Vicente, Uruguay, January 26 and 27, 1921 (adult
male secured January 26).
Three specimens secured at Las Palmas, Riacho Pilaga, and Puerto
Pinasco, with wing measurements ranging from 116.5 mm (female)
to 127 mm. (male), refer to the typical subspecies without difficulty.
The fourth skin, an adult male secured near San Vicente, in the
palm groves that spread over the lowlands near the eastern frontier
of Uruguay, is much larger (Aving, 136 ; tail, 94.5 ; culmen from base,
26; tarsus, 32.7 mm.) and must represent another form. Leverkiihn
'2Proc. Biol. Soc. Washington, vol. 34, p. 136.
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