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

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

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24 BULLETIN 133, UNITED STATES NATIONAL MUSEUM deep boom from a depression bordering a stream, and soon after saw a rhea running away through the acacias. The sound is decep- tive, as it frequently seemed to come from a great distance when, as in the present instance, the bird was quite near. In fact the rhea sounds nearly as loud when far distant as when close at hand. Though the birds frequented the open camps, they followed narrow trails through bands of forest leading from one open tract to another. When not alarmed they Avalked slowly along, feeding from the ground. When approached they took sudden alarm and ran away with long strides, often with spread wings, covering the ground rapidly. Rheas were to be stalked only with great care. In hunting them the Tobas cut small, leafy limbs from shrubs that did not wither quickly, and tied these on their bodies until they resembled bushes. In this disguise, one by the way that was most effective, they worked slowly down on the unsuspecting birds, advancing when the rheas were feeding with heads down, and remaining motionless when the rheas raised their heads to observe the country. Advance was made until within a few meters when the birds were killed with bow and arrow, or by a discharge from a single-barreled shotgun loaded with slugs. The Tobas and Pilagas in Formosa claimed that these birds possessed a keen sense of smell and were always careful to hunt them up wind. Whether there is truth in the assertion is uncertain, but it may be remarked that many Indians were readily detected even where the olfactory sense in the observer was only moderately developed. On September 23, at Kilometer 110, I purchased two young rheas only 3 or 4 days old, for a yard of light-weight canvas from Capita-i, an Anguete. These young had a mournful little whistle, repeated constantly, that carried for some distance. They were in- teresting little birds, erect in carriage, with a preternaturally old appearance that was betrayed at once by their stumbling over slight obstacles as they walked or ran. In resting they frequently leaned against some object instead of lying prone, as do the young of many other long-legged birds. One young rhea from this same brood was kept alive. It proved to be tame and unsuspicious, and, in fact, sought human company. At freedom in the patio at the ranch house it responded readily to an imitation of its note, and spent many hours reclining against my feet and ankles as I worked on notes and specimens. It was especially prone to do this toward evening when it became tired, and apparently in its eyes long-legged humans filled the place normally occupied by a long-legged father rhea. Young birds were common in a domestic state in many of the regions visited. When small they form odd and amusing pets, fearless and friendly in every way ;

BIEDS OF ARGENTINA, PAEAGUAY, URUGUAY, AND CHILE 25 like some other pets, however, they have a surprising rapidity in growth, and soon develop to a point where they become a nuisance through an appetite that is satisfied omnivorously with whatever may offer that is small enough to swallow from the vegetables prepared for dinner, seized instantly when the cook's attention is at- tracted elsewhere, to the watch or shaving soap of the unfortunate owner. An egg secured on September 23, 120 kilometers west of Puerto Pinasco, is between pale olive-buff and olive-buff in color, and has the shell roughened by fine short corrugations that at short inter- vals form slit-like pores several times longer than wide, with their axes in general longitudinal to the axis of the egg. This egg measures 135.2 by 96.5 mm. Rhea eggs, made into a batter with flour and fried, were excellent eating, and were sought after during the early breeding season. A single egg, thus prepared, Avas sufficient for three persons. I am indebted to Carl Hettman for the following note on this species, based mainly on observations made on the upper E.io Pilcomayo. In that region the rhea nest mainly in September and October. The male is said to select a nest site on loose sandy soil, among tall grass in some secluded corner near forest or perhaps in a small, well-screened opening in the monte. A hole more or less circular a meter across is scratched out to a depth of from 100 to 150 mm. The females deposit their eggs in this. Frequently, in fact, nearly always, single eggs loiown as guacho (stray) eggs are found near by. It is supposed that they are deposited by females who visit the nest to find it occupied by some other member of the harem of their polygamous mate. Should the nest be found, the male is encountered near at hand. To attract attention from his treasures he dashes about with spread wings, but makes no effort (in the wild bird) to attack. The breeding season varied, I found, with the locality. Mention has been made of the period in the Paraguayan Chaco. On Decem- ber 8, in the hills back of Zapala, in the Territory of Neuquen, I en- countered a male that had either eggs or small young concealed in a broad hollow, though search failed to reveal them. On February 2, north of San Vicente, Department of Rocha, Uruguay, I noted a male with chicks a week old, and were told that others were breeding. Rhea flesh is eaten, the wings forming the portion most highly prized, and, in addition, parts of the bird figure as remedies in the country medicine chest. From the upper part of the stomach, preserved in a dried form, portions, cut up as needed, are boiled to make a tea said to be a specific for indigestion, a curious use for the powerful digestive agents found in the stomach of this bird. An oil found

24 BULLETIN 133, UNITED STATES NATIONAL MUSEUM<br />

deep boom from a depres<strong>si</strong>on bordering a stream, and soon after<br />

saw a rhea running away through the acacias. The sound is decep-<br />

tive, as it frequently seemed to come from a great distance when, as<br />

in the present instance, the bird was quite near. In fact the rhea<br />

sounds nearly as loud when far distant as when close at hand.<br />

Though the birds frequented the open camps, they followed narrow<br />

trails through bands of forest leading from one open tract to another.<br />

When not alarmed they Avalked slowly along, feeding from<br />

the ground. When approached they took sudden alarm and ran<br />

away with long strides, often with spread wings, covering the<br />

ground rapidly.<br />

Rheas were to be stalked only with great care. In hunting them<br />

the Tobas cut small, leafy limbs from shrubs that did not wither<br />

quickly, and tied these on their bodies until they resembled bushes.<br />

In this disguise, one by the way that was most effective, they worked<br />

slowly down on the unsuspecting birds, advancing when the rheas<br />

were feeding with heads down, and remaining motionless when the<br />

rheas raised their heads to observe the country. Advance was<br />

made until within a few meters when the birds were killed with<br />

bow and arrow, or by a discharge from a <strong>si</strong>ngle-barreled shotgun<br />

loaded with slugs. The Tobas and Pilagas in Formosa claimed<br />

that these birds possessed a keen sense of smell and were always<br />

careful to hunt them up wind. Whether there is truth in the assertion<br />

is uncertain, but it may be remarked that many Indians were<br />

readily detected even where the olfactory sense in the observer was<br />

only moderately developed.<br />

On September 23, at Kilometer 110, I purchased two young rheas<br />

only 3 or 4 days old, for a yard of light-weight canvas from<br />

Capita-i, an Anguete. These young had a mournful little whistle,<br />

repeated constantly, that carried for some distance. They were in-<br />

teresting little birds, erect in carriage, with a preternaturally old<br />

appearance that was betrayed at once by their stumbling over slight<br />

obstacles as they walked or ran. In resting they frequently leaned<br />

against some object instead of lying prone, as do the young of many<br />

other long-legged birds.<br />

One young rhea from this same brood was kept alive. It proved<br />

to be tame and unsuspicious, and, in fact, sought human company.<br />

At freedom in the patio at the ranch house it responded readily to<br />

an imitation of its note, and spent many hours reclining against my<br />

feet and ankles as I worked on notes and specimens. It was especially<br />

prone to do this toward evening when it became tired, and<br />

apparently in its eyes long-legged humans filled the place normally<br />

occupied by a long-legged father rhea. Young birds were common<br />

in a domestic state in many of the regions vi<strong>si</strong>ted. When small<br />

they form odd and amu<strong>si</strong>ng pets, fearless and friendly in every way<br />

;

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