Bulletin - United States National Museum - si-pddr - Smithsonian ...
Bulletin - United States National Museum - si-pddr - Smithsonian ... Bulletin - United States National Museum - si-pddr - Smithsonian ...
38 BULLETIN 133, UNITED STATES NATIONAL MUSEUM flight must perforce abandon this idea at the first encounter in the field. The birds rise with a disconcerting whistle and roar of wings that startled me into missing my first bird clean, but on my second encounter I retaliated by making a double, though one bird was lost in the grass, as I failed to mark it properly. At Las Palmas, in the Territory of Chaco, Nothura m. holiviaTia was common from July 14 to July 28. The birds were encountered in savannas and prairies bordered by heavy groves, where growths of grasses a foot or so high afforded cover. Occasionally one ran out with neck ex- tended to the utmost to watch me, but more frequently they lay close and were overlooked in the heavy cover. At the Riacho Pilaga, Formosa, from August 8 to 20, tinamou were common in the drier areas. Though it was winter and the air often sharp and frosty, I heard the plaintive piping whistle of males frequently as I worked at specimens or walked through the open savannas in early morning. Cover was so heavy here that the birds were seen less easily than in the case of the form inhabiting the open pampa, and though heard constantly they were seldom flushed. On one occasion I saw one walking across an open space where there was little cover, but a minute later, when I returned with a gun, the tinamou had hidden and could not be found, though it was only a few feet away. When flushed they rose from 2 to 5 meters from the ground and darted swiftly away. It was difficult to make them rise a second time. One was noted in the outskirts of the town of Formosa on the Paraguay River on August 23, and several were seen near Puerto Pinasco on September 3. At Kilometer 80 they were abundant from September 6 to 26, and were seen in the open camps through the Chaco for a distance of 200 kilometers west of the river. A female killed on September 6 had the ovaries developing, while males were calling constantly. The call consists of a repetition of one note that begins slowly, becomes louder and somewhat more rapid, and then dies away, a pleasant and agreeable sound. Though brush-grown areas were common here, the birds ranged entirely in open country. On September 25 at Laguna Wall a set of five fresh eggs was secured from a Lengua Indian who had taken them that morning. These eggs are slightly paler than dusky drab (being lighter than the set of N. m. nigroguttata described from Carhue) and measure (in millimeters) as follows: 42.3 by 31.2, 43.1 by 31.6, 44.2 by 31.5, 44.9 by 32.2, 45.1 by 31.5. The Anguete Indians knew this species as 6-eA' en likh\ The soft parts of a bird secured at Las Palmas were colored as follows: Maxilla fuscous; sides of maxilla, and mandible cartridge buff; iris apricot orange; tarsus and toes vinaceous buff.
BIRDS OF ARGENTINA, PARAGUAY, URUGUAY, AND CHILE 39 NOTHURA DARWINI MENDOZENSIS Chubb Nothnra danrini mcndozensis C. Chubb, Bull. Brit. Orn. Club, vol. 38, Dee. 12, 1917, p. 31. (Mendoza, Argentina.) No specimens of this tinamoii were preserved so that the alloca- tion of field notes under this heading is provisional. Spotted tinamous of this type were recorded at General Roca, Territory of Rio Negro, from November 23 to December 3, 1920, where the birds frequented alfalfa fields and other green growth near the river. At Victorica, Pampa, on December 28 I shot an immature bird, but was forced to kill it at too close range because of bushes among which it was found so that it was not possible to preser\'e it. It was light in color and resembled mendozensis. Others were noted here between December 26 and 29. The bird at times frequents open brushy areas as well as fields and prairies, in this differing from the preceding spotted tinamous. At Tunuyan, Mendoza, tinamou were fairly common from March 23 to 28 ; on the latter date I killed one but lost it in high weeds. There is one specimen in the United States National Museum from Cordoba (taken July 8, 1913, by Renato Sanzin) that differs from specimens from Mendoza, the type locality, in more buffy coloration and in possessing bolder markings above. In notes and general habits N. darwini is similar to N. m
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BIRDS OF ARGENTINA, PARAGUAY, URUGUAY, AND CHILE 39<br />
NOTHURA DARWINI MENDOZENSIS Chubb<br />
Nothnra danrini mcndozen<strong>si</strong>s C. Chubb, Bull. Brit. Orn. Club, vol. 38, Dee.<br />
12, 1917, p. 31. (Mendoza, Argentina.)<br />
No specimens of this tinamoii were preserved so that the alloca-<br />
tion of field notes under this heading is provi<strong>si</strong>onal. Spotted tinamous<br />
of this type were recorded at General Roca, Territory of Rio<br />
Negro, from November 23 to December 3, 1920, where the birds frequented<br />
alfalfa fields and other green growth near the river. At<br />
Victorica, Pampa, on December 28 I shot an immature bird, but was<br />
forced to kill it at too close range because of bushes among which it<br />
was found so that it was not pos<strong>si</strong>ble to preser\'e it. It was light in<br />
color and resembled mendozen<strong>si</strong>s. Others were noted here between<br />
December 26 and 29. The bird at times frequents open brushy areas<br />
as well as fields and prairies, in this differing from the preceding<br />
spotted tinamous. At Tunuyan, Mendoza, tinamou were fairly common<br />
from March 23 to 28 ; on the latter date I killed one but lost it in<br />
high weeds.<br />
There is one specimen in the <strong>United</strong> <strong>States</strong> <strong>National</strong> <strong>Museum</strong> from<br />
Cordoba (taken July 8, 1913, by Renato Sanzin) that differs from<br />
specimens from Mendoza, the type locality, in more buffy coloration<br />
and in posses<strong>si</strong>ng bolder markings above.<br />
In notes and general habits N. darwini is <strong>si</strong>milar to N. m