The nest, under a tussock of grass or a stone, is constructed of short dry straws, and usually lined with hair.
West of the dividing crest they are forest clad; east thereof their stony grimness is but slightly softened by growths of scrub and tussock grass.
Two vegetable products, the " balsam bog " (Bolas glebaria) and the " tussock grass " (Dactylis caespitosa) have been objects of curiosity and interest ever since the first accounts of the islands were given.
The beaches and lower lands are covered with a dense growth of tussock grass (Spartina arundinacea), 8 to 10 ft.
High with leaves arranged like a fan; it is a native of the Falkland and certain antarctic islands where it is known as tussock grass.
Their life is nomadic, and they are hunters, living upon the flesh of the guanaco, and using only tussock-roots and wild celery for vegetable food.
In the desert regions vegetation is, of course, extremely scanty, being restricted almost entirely to the tamarisk, Elaeagnus, tussock grass, and a few Salsolaceae.