Bulletin - United States National Museum - si-pddr - Smithsonian ...

BIRDS OF ARGENTINA, PARAGUAY, URUGUAY, AND CHILE 331
roted at Formosa, Formosa, August 23 and 24, and in September in
the area west of Puerto Pinasco, Paraguay, they were observed at
Kilometer SO, on September 10, 15, 1(3 (a male taken), and 20, and
at Kilometer 200 (near Laguna Wall) on September 25. These
birds frequented the dense branches of algarrobas and other low,
thorny trees that were scattered across small, open prairies, where
they hopped about under cover, avoiding the open save when flying
with a tilting flight from tree to tree. At intervals the tail was
jerked quickly two or three times, and occasionally one uttered a soft
note, lohit^ or a more explosive sound, whit sfee.
A specimen taken September 30 when fresh had the bill blackish
brown number 3 ; iris Hay's brown ; tarsus and toes black.
Berlepsch and Hellmayr '^ have considered Suhlegatus glnher
Sclater and Salvin a geographic form of fasciatus, a contention
not borne out by the scanty material at hand, since glaher has a
distinctly broader, heavier bill that is black in color and is more
distinctly uncinate at the tip. A skin seen from Santa Ana, in the
Urubamba Valley, Peru (male, July 15, 1916), one of the five recorded
by Chapman -^ as Suhlegatus fasciatus fasciatus^ that has a
much smaller bill and is paler in color than my skins from the Chaco,
is probably Suhlegatus grlseocularis Sclater and Salvin,-* described
from Maranura, a short distance below Santa Ana.
PITANGUS SULPHURATUS BOLIVIANUS (Lafresnaye)
Saurophagus bolivianus Lafkesnaye, Rev. Mag. Zool., 1852, p. 463.
(Chuquisaca, Bolivia.)
The eight specimens secured of this common bird are as follows
Female, Formosa, Formosa, August 24, 1920; female, Kilometer
80, west of Puerto Pinasco, Paraguay, September 7: a pair, Lavalle,
Buenos Aires, November 13; adult and juvenile males and
immature female, San Vicente, Uruguay, January 25, 26, and 28,
1921 ; female, Lazcano, Uruguay, February 8. The species ranged
through the humid eastern pampas of Argentina and Uruguay,
along the base of the Andes, and in the Chaco, north into Paraguay,
but was not seen in the semiarid interior. Points at which
it was recorded are as follow^s: Puerto Pinasco, Paraguay, Sep-
tember 3 and 30, 1920; Kilometer 80, September 6 to 20; Kilometer
110, September 23; Kilometer 200, September 25; Formosa,
Formosa, August 5, 23, and 24; Riacho Pilaga, Formosa, August
8 to 21; Las Palmas, Chaco, July 13 to August 1; Kesistencia.
Chaco, July 8 to 10; Santa Fe, Santa Fe, July 4; Carrasco, Uru-
guay, January 9 and 16, 1921; La Paloma, Uruguay, Janivury 23;
23 Journ. fur Ornith., 1905, pp. 4-5.
«iU. S. Nat. Mus., Bull. 117, 1921, p. 96.
'^ Proc. Zool. Soc. London, 1876, p. 17. (Maranura, Peru.)
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