The natives of the island were divided according to their habits of
survival in two groups: the hunter-gatherers and hunters adapted to
coastal marine life.
The "Selk'nam" were hunter-gatherers. They used bows and arrows for
their main prey: the guanaco. Of this animal they used the as food and
their skins for clothing.
Also collected, fungi, fruits, rodents and birds.
They are related racially with the Tehuelches.
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The
city of Ushuaia is located at the shore of the Beagle Channel, in south
America, latitude 54 ° 49'S, longitude 68 ° 18'W. For this reason holds
the title of "world's southernmost city".
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This group of birds living in the fuegian shores during the summer
season, except migratory species that normally breed in the northern
hemisphere and travel to their food territories in the austral summer.
Some residents like the common steam duck, the beachy cauquen or the
carancho have a special adaptation that involves the occupation of the
coastal environment all year, constituting interesting cases of
endemism. Other easy watching birds in this environment are the
oystercatchers, the snipes, the skimmers, plovers, etc..
Some species that nest in inland water bodies, such as the hooded, moving to the coast in winter. Also, most of the ducks frequent the bays near the mouths of rivers in search of food.These groups, despite their seasonal occurrence in coastal waters, are considered as characteristic of inland waters. The reverse situation is registered with the Patagonian and Antarctic remolineras that forage in lakes and ponds also inland, where sporadically come to nest. Similarly there have been colonies of nesting cormorants on Lake Yehuin.
