2010年7月16日
Nearly always you will see the wood ibis-I am taking as a guide my own experience of the bird as I know it here in coastal Carolina-flying high in the air, or resting in compact flocks on the marshes or the tidal flats, or roosting in the woods of the barrier islands, or of the cypress lagoons on the mainland. You will seldom-unless you are very fortunate-see ibises feeding near at hand. In feeding, the flocks often scatter, the birds going singly or in couples to their favorite feeding places. They seek their dinners generally at low tide.
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Out boating in a cypress lagoon, we disturbed an army of wood ibises having their mid-morning nap. Reluctantly they took flight as the most watchful ones among them detected the approach of our punt. All at once the whole company of them, a hundred and fifty at least, burst upon our vision as we glided onward through the flooded woods; and when we came into view the noise of their wings was redoubled as those that still lingered in the trees, where they had all been roosting, sprang suddenly into the air.
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Not long ago Dr. T.A. Jaggar, director of the Hawaiian Volcano Observatory, published in a widely circulated magazine a startling account of the destruction of New York City by an earthquake in the year 1932. The death list in this imaginary disaster numbered nine hundred thousand and the property loss was a little matter of fifty billion dollars.
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There is something of the glamor of those days about all the big birds that still survive from early colonisation; and that is one reason why, to many of us, the larger birds are in general more interesting than the smaller ones however rare or beautiful. But, to my mind at any rate, the wood Ibis recalls the rich past more strikingly than any other birds that are with us today; and doubtless this is due largely to the fact that, although it is less abundant than the herons, the ibis is even more gregarious and is to be seen on the marshes in larger flocks.
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One of the most interesting cases of this kind is furnished by the seismic history of our own country. During the years 1811 and 1812 a remarkable series of shocks, now usually referred to as the “New Madrid earthquake,” occurred in the middle Mississippi Valley. In the course of a few months no less than 1,874 shocks were felt. Eight of these were very severe, and were perceptible over the whole of the then settled portion of the United States. This earthquake produced notable geographic changes; new islands came into existence in the Mississippi, new lakes were formed in neighboring valleys (one of them one hundred miles long), and old lakes disappeared.
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This quake was felt over a wide area, and, but for the sparse settlement of the country, would probably have caused great havoc. Many people think of a severe earthquake as consisting of a violent heaving or lurching of the earth’s surface, but such movements, when they occur, are only incidental. The essential feature of an earthquake is a series of rapid vibrations in the elastic rocks of the earth’s crust, caused by a sudden jar, which occurs, as a rule, some miles underground.
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Many people think that hiking holidays are great. Why not you? If you are considering a “different” holiday which will be great for your health and allow you to appreciate a beautiful and scenic part of the world in depth, then we suggest you read this article, and form you opinion about walking holidays.
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Out punting along the shore of the lagoon one day, orchard orioles sang from time to time, and farther away, in high pinewoods beyond, crested flycatchers and red-bellied woodpeckers were calling. But, for the most part, the bird voices which we heard as we paddled along our serpentine watery path were the shrill whistles of ospreys who had built their bulky castles of sticks in cypresses beside our way, and the harsh voices of herons of several kinds-great blue and little blue herons, black-crowned and yellow-crowned night herons.
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There are many sounds in Nature that delight the ear. The songs of birds, without which the green countryside would be almost a dreary place; the shrill, whistling bugle note of the whitetail deer which uttered only at night and which is one of the rarest and wildest of all woods sounds; the guttural, mysterious voices of migrating herons dropping down through the blackness overhead; the music of the wind in one high, dim, shadowy forest of ancient, straight-trunked pines; the deep-toned thunder roll of the surf beating upon a lonely shore-all these sounds in their several ways bring pleasure to those whose joy lies in natural things and who will not always be pent in cities.
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May is the month of migrant warblers, for in this month nine-tenths of our stock of these beautiful and delicate birds pass northward through our forests. A few are of limited range in the South, and scarcely leave our borders for the winter. But many summer in our northern states and in Canada, and in winter go far south. Their wanderings are fraught with romance, if we but pause to consider them. On some bright morning we may awake to find our treetops musical with bright-coated creatures that have appeared from somewhere in the night.
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