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

370 BULLETIN 133, UNITED STATES NATIONAL MUSEUM
One taken July 9 had the bill blackish slate ;
yellow ; iris very dark brown.
BASILEUTERUS FLAVEOLUS (Baird)
tarsus and toes honey
Myiothlypis flavcolus Baird, Rev. Amer. Birds, May, 1865, p. 252. (Para-
guay. )
This warbler was found only in the region west of Puerto Pinasco,
Paraguay, where it was seen September 1, 1920, near Kilometer 25,
and September 9 to 20, near Kilometer 80. Adult males, taken
September 1 and 10, were preserved as skins. The species ranged in
pairs in dense forest growth, feeding on or near the ground. The
birds Avere shy but were occasionally seen walking or hopping about
with constantly jerking tail. Males sang a sweet, warbling song,
and the call note w^as a sharp chip.
MYIOBORUS BRUNNICEPS (d'Orbigny and Lafresnaye)
Setophar/a irunniceps (I'Orbigny and Lafresnaye, Mag. Zool.. 1837, p. 50.
(Yungas, Bolivia.)
On* April 17, 1921, the handsome brown-capped redstart was common
on the slopes of the Sierra San Xavier above Tafi Viejo, Tucuman,
between 1,800 and 2,100 meters, where it ranged in thickets
of low, rather dense undergrowth scattered over rolling slopes above
the forest, or occasionally came into more open areas among the
groves of tree alders. The birds, alert and active in every move-
ment, flew from perch to perch with a flirt of the tail that displayed
the prominent white of the outer feathers.
The specimen preserved is an immature male in fresh fall plumage.
GEOTHLYPIS AEQUINOCTIALIS VELATA (Vieillot)
Sylvia velata Vieillot, Hist. Nat. Ois. Amer. Sept., vol. 2, 1807, p. 22, pi.
74. (No locality. " De la collection de M. Dufresne.")
The present yellowthroat was so local in its distribution and so
sedentary that it was probably overlooked in many localities. It was
recorded as follows: Las Palmas, Chaco, July 20, 22 (adult male
taken), and 28 (male and female shot); Riacho Pilaga, Formosa,
August 9 and 17 (a male taken on each of the dates mentioned)
Formosa, Formosa, August 24 (immature male seciu-ed) ; Lazcano,
Uruguay, February 5 (immature male) ; Rio Negro, Uruguay, February
17 (immature female) and 18 (immature female, adult male) ;
Tapia, Tucuman, April 11 and 12 (adult females on the two dates
given). Immature birds are somewhat browner than others, while
adults shot in winter are more richly colored than those secured in
summer. Immature birds were common in February, and adults
taken in Uruguay in February and in Tucuman in April were in full
;