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

BIRDS OF ARGENTINA, PARAGUAY, URUGUAY, AND CHILE 211
series from Formosa and Paraguay the barring on the foreneck is
restricted or absent, a distinction seen without difficulty in comparing
specimens. In describing pilcomayensis, Hargitt chose a specimen
without a label, and assumed that it came from the " Rio Pilcomayo."
He mentions a second male secured near Empedrado (a short distance
below Corrientes), and therefore not far from Resistencia and Las
Palmas, both this bird and the type being of the form with barred
neck as nearly as may be determined from his description. He also
had a third specimen, a female from Fortin Page on the Pilcomayo.
Kerr ^^ lists only two specimens. No. 6, which by reference to Hargitt
we learn comes from an island opposite Empedrado, and No. 125,.
a female shot at Fortin Page on the north fork of the Pilcomayo.
Kerr mentions that he found this bird on the Pilcomayo, at Puerto
Bermejo, and on an island in the Parana opposite Empedrado. Ob-
viously Hargitt's unlabeled type may have come from any of these
regions. Since on geographical grounds the bird from Fortin Page
should resemble the light-breasted form from the interior of Formosa
and from Puerto Pinasco, by inference it is possible that the type of
pilcomayensis^ if of the barred-throated form, may have come from
near either Empedrado or Puerto Bermejo. Until this specimen
is examined with the female from Fortin Page, the two forms, one of
them undescribed, here included can not be successfully differ-
entiated.
Measurements of the skins secured are appended.
No.
284629
284627
284624
284626
284628
284622
284625
284623
Male I
Locality
'
1
i
I
1
...do
...do
Resistencia, Chaco
Las Palmas, Chaco
Riacho Pilaga, Formosa.-.
July
July
Aug.
9,1920
21,1920
8,1920
...do do... Aug. 18,1920
...do Puerto Pinasco, Paraguay Sept. 1,1920
...do
Female....
do
Las Palmas, Chaco...
:
Sept. 30,1920
July 14,1920
Aug. 11,1920
...do Riacho Pilaga, Formosa I
Date Wing