The Naturalist in La Plata by W. H. (William Henry) Hudson
page 182 of 312 (58%)
page 182 of 312 (58%)
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such times when they have risen till their dark bulky bodies appear like
floating specks on the blue sky, or until they disappear from sight altogether, the notes become wonderfully etherealized by distance to a soft silvery sound, and it is then very delightful to listen to them. It seems strange that so ponderous a fowl with only six feet and a half spread of wings should possess a power of soaring equal to that of vultures and eagles. Even the vulture with its marvellous wing power soars chiefly from necessity, and when its crop is full finds no pleasure in "scaling the heavens by invisible stairs." The chakar leaves its grass-plot after feeding and soars purely for recreation, taking so much pleasure in its aerial exercises that in bright warm weather, in winter and spring, it spends a great part of the day in the upper regions of the air. On the earth its air is grave and its motions measured and majestic, and it rises with immense labour, the wings producing a sound like a high wind. But as the bird mounts higher, sweeping round as it ascends, just as vultures and eagles do, it gradually appears to become more buoyant, describing each succeeding circle with increasing grace. I can only account for this magnificent flight, beginning so laboriously, by supposing that the bubble space under the skin becomes inflated with an air lighter than atmospheric air, enabling a body so heavy with wings disproportionately short to float with such ease and evident enjoyment at the vast heights to which the bird ascends. The heavenward flight of a large bird is always a magnificent spectacle; that of the chakar is peculiarly fascinating on account of the resounding notes it sings while soaring, and in which the bird seems to exult in its sublime power and freedom. I was once very much surprised at the behaviour of a couple of chakars during a thunderstorm. On a still sultry day in summer I was standing |
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