Difference of Climate between East and West Patagonia.—Extraordinary Aridity of East Patagonia.—Zoology.—The Guanaco.—The Tucutuco.—The Patagonian Agouti.—Vultures.—The Turkey-buzzard.—The Carrancha.—The Chimango.—Darwin’s Ostrich.—The Patagonians.—Exaggerated Accounts of their Stature.—Their Physiognomy and Dress.—Religious Ideas.—Superstitions.—Astronomical Knowledge.—Division into Tribes.—The Tent, or Toldo.—Trading Routes.—The great Cacique.—Introduction of the Horse.—Industry.—Amusements.—Character.
Patagonia, the southern extremity of the American continent, is divided by the ridge of the Andes into two parts of a totally different character. Its western coast-lands, washed by the cold Antarctic current and exposed to the humid gales of a restless ocean, are almost constantly obscured with clouds and drenched with rain. Dense forests, dripping with moisture, clothe the steep hill-sides; and, from the coldness of the summer, the snow-line is so low that for 650 miles northward of Tierra del Fuego almost every arm of the sea which penetrates to the interior higher chain is terminated by huge glaciers descending to the water’s edge.
East Patagonia, on the contrary, a vast plain rising in successive terraces from the Atlantic to the foot of the Cordillera, is one of the most arid regions of the globe. The extreme dryness of the prevailing westerly winds, which have been totally deprived of their humidity before crossing the Andes, and the well-rounded shingles which compose the soil, have entailed the curse of418 sterility on the land. Monotonous warm tints of brown, yellow, or light red everywhere fatigue the eye, which vainly seeks for rest in the dark blue sky, and finds refreshing green only on some river-banks.
Many broad flat vales transsect the plains, and in these the vegetation is somewhat better. The streams of former ages have no doubt hollowed them out, for the rivers of the present day are utterly inadequate to the task. On account of the dryness of the atmosphere, the traveller may journey for days in these Patagonian plains without finding a drop of water. Springs are rare, and even when found are generally brackish and unrefreshing. While the “Beagle” was anchoring in the spacious harbor of Port St. Julian, a party one day accompanied Captain Fitzroy on a long walk round the head of the harbor. They were eleven hours without tasting any water, and some of the party were quite exhausted. From the summit of a hill, to which the appropriate name of “Thirsty Hill” was given, a fine lake was spied, and two of the party proceeded, with concerted signals, to show whether it was fresh water. The disappointment may be imagined when the supposed lake was found to be a snow-white expanse of salt, crystallized in great cubes.
The extreme dryness of the air, which imparts so sterile a character to the country, favors the formation of guano deposits on the naked islands along the coast, which are frequented by sea-birds. Protracted droughts are essential to the accumulation of this manure, for repeated showers of rain would wash it into the sea, and for this reason no guano deposits are found on the populous bird-mountains of the north. A similar dryness of the atmosphere favors the deposit at Ichaboe on the African coast, at the Kooria Nooria Islands in the Indian Ocean, and at the Chincha Islands on the Peruvian coast; and this kind of climate appears also to be particularly agreeable to the sea-birds.
Considering the excessive aridity of Patagonia, it seems surprising that the country should be traversed from west to east by such considerable rivers as the Rio Negro, the Gallegos, and the Santa Cruz; but all these have their sources in the Andes, and are fed by mountain torrents, which no doubt derive their waters from the atmospherical precipitations of the Pacific.
The zoology of Patagonia is as limited as its flora, and greatly resembles in its character that of the mountain regions of Chili, or of the Puna or high table-land of the tropical Andes of Peru and Bolivia, the height of which varies from 10,000 to 14,000 feet above the level of the sea.
In all these countries, situated in such different latitudes, the explorer is astonished to find not only the same genera, but even animals of the same species. The forest-loving race of monkeys is nowhere to be found in treeless Patagonia. None of the quadrumana ventures farther south than 29° lat., but on the borders of the Rio Negro, the northern boundary of Patagonia, some small bats are seen fluttering about in the twilight.
The dark-brown yellow-headed Galictis vittata, an animal allied to the Civets and Genets, is likewise found there, but much more frequently its relation the Zorilla, which ranges from 30° lat. to the Strait of Magellan, and, like the skunk of the north, has the power of discharging a fluid of an intolerably fetid odor.
419 The guanaco is the characteristic quadruped of the plains of Patagonia, where it is no less useful to man than the wild reindeer to the savage hunters of the north. It ranges from the Cordillera of Peru as far south as the islands near Cape Horn, but it appears to be more frequent on the plains of South Patagonia than anywhere else. It is of greater size than the llama, and resembles it so much that it was supposed to be the wild variety, until Tschudi, in his “Fauna Peruana,” pointed out the specific difference between both. The guanaco is a more elegant animal, with a long, slender neck and fine legs; its fleece is shorter and less fine; its color is brown, the under parts being whitish. It generally lives in small herds of from half a dozen to thirty in each; but on the banks of the Santa Cruz Mr. Darwin saw one herd which contained at least five hundred. Though extremely shy and wary, it is no match for the cunning of the savage; and, before the horse was introduced into Patagonia, man most probably could not have existed in those arid plains without the guanaco. It easily takes to the water, and this accounts for its presence on the eastern islands of Fuegia, where it has been followed by the puma, or American lion, who likewise pursues it on the plateaus of the Cordillera, 12,000 feet above the level of the sea.
The Brazilian fox (Canis Azaræ) is also met with as far as the strait. It is somewhat smaller than our fox, but more robustly built. In Patagonia it preys chiefly upon the small rodents, with which the land, in spite of its sterility, is perhaps more richly stocked than any other country in the world. Among these the tucutuco (Ctenomys magellanica), which may briefly be described as a gnawer with the habits of a mole, is one of the most remarkable. It abounds near the strait, where the sandy plain is one vast burrow of these creatures. This curious animal makes, when beneath the ground, a very peculiar noise, consisting of a short nasal grunt, monotonously repeated about four times in quick succession, the name tucutuco being given in imitation of the sound. Where the animal is abundant, it may be heard at all times of the day, and sometimes directly beneath one’s feet. The tucutuco is nocturnal in its habits; its food consists chiefly of roots, the search after which seems to be the cause of its burrowing.
Among the indigenous quadrupeds of Patagonia we find, moreover, a species of agouti (Dasyprocta patagonica), which in some measure represents our hare, but is about twice the size, and has only three toes on its hind feet; the elegant long-eared mara (Dolichotis patagonicus), which, unlike most burrowing animals, wanders, commonly two or three together, for miles from its home; the Didelphis Azaræ, a species of opossum; and the pichy (Dasypus minutus), a small armadillo, which extends as far south as 50° lat.
It would be vain to seek among the Patagonian birds for the splendid plumage of the tropical feathered tribes; their colors are simple and monotonous, as those of the naked plains which are their home. Many birds of prey of the warmer regions of America likewise frequent the arid wastes of Patagonia. When a horse chances to perish from fatigue or thirst, the turkey-buzzard (Vultur aura?) begins to feast upon its carcass, and then the carrancha (Polyborus brasiliensis) and the chimango (Polyborus chimango) pick its bones420 clean. Though these birds, which well supply the place of our carrion-crows, magpies, and ravens, generally feed in common, they are by no means on a friendly footing. When the carrancha is quietly seated on the branch of a tree or on the ground, the chimango often continues for a long time flying backward and forward, up and down, in a semicircle, trying each time, at the bottom of the curve, to strike its larger relative, which takes little notice except by bobbing its head. The carrancha, which is common in the dry and open countries, and likewise on the arid shores of the Pacific, is also found inhabiting the forests of West Patagonia and Tierra del Fuego. The chimango is much smaller than the carrancha. Of all the carrion feeders, it is generally the last which leaves the skeleton of a dead animal, and may frequently be seen within the ribs of a horse, like a prisoner behind a grating. It is frequently found on the sea-coast, where it lives on small fishes.
The condor may likewise be reckoned among the Patagonian birds, as it follows its prey, the guanaco, across the Strait of Magellan as far as the eastern lowlands of Tierra del Fuego. In the winter especially, when the cold forces vast numbers of geese and ducks to quit the Antarctic islands in the higher latitudes, all these birds of prey, to which the crowned falcon (Circætes coronatus), the three-colored buzzard (Buteo tricolor), the Aguia eagle (Haliatus aguia), and several others must be added, live in luxury. Most of them are likewise migratory birds, and disappear in summer, with the defenseless tribes on which they prey. The Magellanic thrush (Turdus magellanicus) leaves in winter the stormy banks of the strait, and retires to the milder skies of the Rio Negro, where it meets the tuneful Patagonian warbler (Orpheus patagonicus), the nimble troglodyte (Troglodytes pallida), and the inconstant fly-catcher (Muscicape parvulus).
A peculiar species of ostrich, the nandu (Rhea Darwini), roams over the plains of Southern Patagonia as far as the Strait of Magellan. It is smaller than the South American ostrich (Rhea americana), which inhabits the country of La Plata as far as a little south of the Rio Negro; but it is more beautiful, as its white feathers are tipped with black at the extremity, and its black ones in like manner terminate in white.
In the same high latitude one is surprised to meet with a member of the parrot tribe (Psittacus patagonicus) feeding on the seeds of the winter’s bark, and to see humming-birds (Trochilus forficatus) flitting about during the snowstorms in the forests of Tierra del Fuego.
The plains of Patagonia are inhabited by a race of Indians supposed to be gigantic, but the descriptions of modern travellers have dispelled the idea. Thus Pigafetti, the companion of Magellan, relates that the Europeans only reach to the waist of the Patagonians; Simon de Weert tells us that they are from ten to eleven feet high; Byron, who visited them in the last century, reduces them to seven feet, and Captain King finally, who accurately measured them, found the medium height of the males about five feet eleven inches. As the Patagonians have most likely not degenerated within the last few centuries, we may infer from these various accounts that the travellers of the present day are less prone to exaggeration than those of more ancient times. So much is421 certain, that the Patagonians are a fine athletic race of men, with remarkably broad shoulders and thick muscular limbs. The head is long, broad, and flat, and the forehead low, with the hair growing within an inch of the eyebrows, which............