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In Beaver World Part 7

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Less than half an hour after the house was wrecked, these indomitable animals began to rebuild it. Lashed by icy waves, beaten by the wind, half-coated with ice, these home-loving people strove to rebuild their home. Mud was brought from the bottom of the pond and piled upon the shattered foundation. This mud set--froze--almost instantly on being placed. They worked desperately, and from time to time I caught sight of Flat-top. Toward evening it appeared possible that the house might be restored, but, just as darkness was falling, a roaring gust struck the lake and a great swell threw the new part into the water.

The colonists gave up the hopeless task and that night fled down the mountain. Two were killed before they had gone a quarter of a mile.

Along the trail were three other red smears upon the crusted snow; each told of a death and a feast upon the wintry mountainside among the solemn pines. Flat-top with five others finally gained the Wind River Colony, from which he had led his emigrants two years before.

One day the following June, while examining the lilies in the lake, I came upon a low, freshly cut stump;--Flat-top had returned. A number of colonists were with him and all had come to stay.

All sizable aspen that were within a few yards of the water had been cut away, but at the southwest corner of the lake, about sixty feet from the sh.o.r.e, was an aspen thicket. Flat-top and his fellow workers cut a ca.n.a.l from the lake through a low, sedgy flat into this aspen thicket. The ca.n.a.l was straight, about fourteen inches deep and twenty-six inches wide. Its walls were smoothly cut and most of the excavated material was piled evenly on one side of the ca.n.a.l and about eight inches from it. It had an angular, mechanical appearance, and suggested the work not of a beaver, but of man, and that of a very careful man too.



Down this ca.n.a.l the colonists floated the timbers used in building their two houses. On the completion of the houses, the home-builders returned to the grove and procured winter supplies. In most cases the small aspen were floated to the pile between the houses with an adept skill, without severing the trunk or cutting off a single limb.

The colonists had a few years of ideal beaver life. One summer I came upon Flat-top and a few other beaver by the brook that drains the lake, and at a point about half a mile below its outlet. It was along this brook that Flat-top's intrepid ancestors had painfully climbed to establish the first settlement in the lake. Commonly each summer several beaver descended the mountain and spent a few weeks of vacation along Wind River. Invariably they returned before the end of August; and autumn harvest-gathering usually began shortly after their return.

Year after year the regularly equipped trappers pa.s.sed the lake without stopping. The houses did not show distinctly from the trail, and the trappers did not know that there were beaver in this place.

But this peaceful, populous lake was not forever to remain immune from the wiles of man, and one day it was planted with that barbaric, cruel torture-machine, the steel trap.

A cultured consumptive, who had returned temporarily to nature, was boarding at a ranch house several miles away. While out riding he discovered the colony and at once resolved to depopulate it. The beaver ignored his array of traps until he enlisted the services of an old trapper, whose skill sent most of the beaver to their death before the sepia-colored catkins appeared upon the aspens. Flat-top escaped.

The ruinous raid of the trappers was followed by a dry season, and during the drouth a rancher down the mountain came up prospecting for water. He cut a ditch in the outlet ridge of the lake, and out gushed the water. He started home in a cheerful mood, but long before he arrived, the "first engineers" had blocked his ditch. During the next few days and nights the rancher made many trips from his house to the lake, and when he was not in the ditch, swearing, and opening it, the beaver were in it shutting off the water.

From time to time I dropped around to see the struggle, one day coming upon the scene while the beaver were completing a blockade. For a time the beaver hesitated; then they partly resumed operations and carried material to the spot, but without showing themselves entirely above water. When it appeared that they must have enough to complete the blockade, I advanced a trifle nearer so as to have a good view while they placed the acc.u.mulated material. For a time not a beaver showed himself. By and by an aged one climbed out of the water, pretending not to notice me, and deliberately piled things right and left until he had completed the ditch-damming to his satisfaction. This act was audacious and truly heroic. The hero was Flat-top.

In this contest with the rancher, the beaver persisted and worked so effectively that they at last won and saved their homes, in the face of what appeared to be an unconquerable opposition.

A little while after this incident, a home-seeker came along, and, liking the place, built a cabin in a clump of pines close to the southern sh.o.r.e. Though he was a gray old man without a family, I imagined he would exterminate the beaver and looked upon him with a lack of neighborly feeling.

Several months went by, and I had failed to call upon him, but one day while pa.s.sing I heard him order a trapper off the place. This order was accompanied by so strong a declaration of principles--together with a humane plea for the life of every wild animal--that I made haste to call that evening.

One afternoon in a pine thicket, close to the lake-sh.o.r.e, I came upon two gray wolves, both devouring beaver, which had met their death while harvesting aspens for winter. The following spring I had a more delightful glimpse of life in the wilds. Within fifty feet of the lake-sh.o.r.e stood a large pine stump that rose about ten feet from the ground. Feeling that I should escape notice if I sat still on the top, I climbed up. Though it was mid-forenoon, the beaver came out of the lake and wandered about nibbling here and there at the few green plants of early spring. They did not detect me. They actually appeared to enjoy themselves. This is the only time that I ever saw a beaver fully at ease and apparently happy on land. In the midst of their pleasures, a flock of mountain sheep came along and mingled with them.

The beaver paused and stared; now and then a sheep would momentarily stare at a beaver, or sniff the air as though he did not quite like beaver odor. In less than a minute the flock moved on, but just as they started, a beaver pa.s.sed in front of the lead ram, who made a playful pretense of a b.u.t.t at him; to this the beaver paid not the slightest heed.

During the homesteader's second summer he concluded to raise the outlet ridge, deepen the water, and make a fish pond of the lake.

Being poor, he worked alone with wheelbarrow and shovel. The beaver evidently watched the progress of the work, and each morning their fresh footprints showed in the newly piled earth. Shortly before the dam was completed, the homesteader was called away for a few days, and on his return he was astonished to find that the beaver had completed his dam! The part made by the beaver suited him as to height and length, so he covered it over with earth and allowed it to remain.

His work in turn was inspected and apparently approved by the beaver.

How long does a beaver live? Trappers say from fifteen to fifty years.

I had glimpses of Flat-top through eighteen years, and he must have been not less than four years of age when I first met him. This would make his age twenty-two years; but he may have been six years of age--he looked it--the morning he first led emigrants into Lily Lake; and he may have lived a few years after I saw him last. But only the chosen few among the beaver can succeed in living as long as Flat-top.

The last time I saw him was the day he dared me and blockaded the drain ditch and stopped the outrus.h.i.+ng water.

Flat-top has vanished, and the kind old homesteader has gone to his last long sleep; but the lake still remains, and still there stands a beaver house among the pond-lilies.

The Colony in Winter

In the Medicine Bow Mountains one December day, I came upon a beaver house that was surrounded by a pack of wolves. These beasts were trying to break into the house. Apparently an early autumn snow had blanketed the house and thus prevented its walls from freezing. The soft condition of the walls, along with the extreme hunger of the wolves, led to this a.s.sault. Two of these animals were near the top of the house clawing away at a rapid rate. Now and then one of the sticks or poles in the house-wall was encountered, and at this the wolf would bite and tear furiously. Occasionally one of the wolves caught a resisting stick in his teeth, and, leaning back, shook his head, endeavoring with all his might to tear it out. A number of wolves lay about expectant; a few sat up eagerly on haunches, while others moved about snarling, driving the others off a few yards, to be in turn driven off themselves. Shortly before they discovered me, there was a fierce fight on top of the house, in which several mixed.

Even though they had broken into the house, it would have availed them nothing, for in this, as in all old colonies, there were safety tunnels from the house which extended beneath the pond to points on sh.o.r.e. In these tunnels the beaver find safety, if by any means the house is ruined. Although carnivorous animals are fond of beaver flesh, they rarely take the useless trouble of digging into a house.

Occasionally a wolverine or a bear may dig into a thin-walled house or one not frozen, then, after breaking in, lie in wait, and endeavor to make a capture while the beaver are repairing the hole. Beaver are more secure from enemies during the winter than at any other time. It is while felling a tree far from the water or while following a shallow stream that most beaver are captured by their enemies.

Many a time in winter I have made a pleasant visit to a beaver colony.

One day, a few hours after a heavy snowfall, I came out of a dark forest and stood for a time on the edge of the snow-covered pond.

Around were the firs and spruces of the forest, moveless as statues and each a pointed cone of snow. Around the small snowy plain of the pond, the drooping snow-entangled willows held their heads together in contented and thoughtful silence. Everything was serene.

[Ill.u.s.tration: HOUSE, FOOD-PILE, POND, AND DAM IN WINTER]

A clean fox track led from the woods in a straight line across the snowy surface of the pond to the house, which stood near the centre of this smooth white opening. The tracks encircled the house and ascended to the top of it, where the record imprinted in the snow told that here he watchfully rested. Descending, he had sniffed at the bushy tips of the winter food-pile that thrust up through the ice, then crossed the dam to plunge into the snowy tangle of willows.

Water was still pouring and gurgling down a steep beaver slide. This was ice-and-snow-covered except at two points where the swift splas.h.i.+ng water dashed intermittently from a deep icy vent. While I was examining the beauty of the upbuilding icy b.u.t.tresses by one of the vents, a water-ouzel came forth and alighted almost within reach.

I stood still. After giving a few of his nodding bows, he reentered the vent. Presently he emerged from the lower vent and, alighting upon an ice-coated boulder, indifferent to the gray sky from which scattered flakes were slowly falling and despite a temperature of five below zero, he sang low and sweetly for several seconds.

Beaver do not surrender themselves to the confines of a house and pond until cold solidly covers the pond with a roof of ice. The time of this is commonly about the first of December, but the date is of course, in a measure, dependent upon lat.i.tude, alt.i.tude, and the peculiar weather conditions of each year. Most beaver return to the old colony, or start a new one by the first of September. They have had a merry rambling summer and energetically take hold to have the house and dam ready and a harvest stored by the time winter begins.

But they are not always ready. Enemies may hara.s.s them, low water delay them, or an unusually early winter or even a heavy snow may so hamper them that, despite greatest effort, the ice puts a time lock upon the pond and closes them in for the winter without sufficient supplies.

Early one October an early snowfall worked hards.h.i.+p in several colonies near my home. Fortunately the ponds were not deeply frozen, and those colonies which had aspen groves close to the water succeeded in felling and dragging in sufficient food-supplies for the winter. As snow drifted into the groves, many of the trees harvested were cut from the tops of snowdrifts, and thus left high stumps. The following summer a number of these stood four feet above the earth and presented a striking appearance alongside the sixteen-inch stumps of normal height.

One of these storm-caught colonies fared badly. The inhabitants were obliged to go a long distance from the water for trees, and their all too scanty harvest was gathered with some loss of life. Apparently both wolves and lions discovered the unfortunate predicament of the harvesters, and lay in wait to catch them as they floundered slowly through the snow. The following winter these colonists tunneled through the bottom--perhaps the least frozen part of the dam--and came forth for food long before the break-up of the ice. The water drained from the pond, and after the ice had melted, the bottom of the pond revealed a torn-up condition as though the starving winter inmates had dug out for food every root and rootstock to be found in the bottom.

While visiting ponds at the beginning of winter, I have many times noticed that, shortly after the pond was solidly frozen over, a hole was made through the dam just below the water-surface of the pond.

This lowered the water-level two inches or more. Did this slight lowering of the water have to do with the ventilation of the ice-covered pond, or was it to put a check on deep freezing, or for both purposes?

In the majority of cases these holes were made from ponds which, during the winter, received but a meagre inflow of fresh water.

Naturally, ponds receiving a strong inflow of water would be better ventilated, and would freeze less swiftly and deeply than those whose waters became stagnant. This drawing-off of water after a few inches of ice had formed, would, in some places, despite the settling of the ice, form an air blanket that would delay freezing, and thus possibly prevent the ice from forming so thickly. The air admitted by drawing off the water would be inclosed beneath the ice, and might thus be helpful to the beaver inclosed in house and pond. In only a few cases were these holes made from ponds which had subway tunnels,--tunnels which run from alongside the house through the bottom of the pond to a point above water-level on the sh.o.r.e. In a few instances the beaver, I do not know how many, came out of this hole, cut and ate a few twigs, and then returned and closed it. Twice this was used as a way out by beaver who emerged and went to other colonies. In one case the beaver entered the other pond by making a hole through the dam. In the other they entered the pond through a subway tunnel. While these holes which lower the pond-level may have chiefly to do with ventilation, or may be for the purpose of putting a check on freezing, my evidence is not ample enough for final conclusions.

A sentence of close confinement for about a third of the year for an animal that breathes air and uses pure water, is simply one of the strange ways that work out with nature. While winter lasts, a beaver must spend his time either in the dark, ill-ventilated house or in the water of the pond. Apparently he does much sleeping and possibly has a dull time of it. No news, no visitors, and apparently nothing to do!

Still a beaver has food, and when dangers surround the wild folk outside the pond's roof of gla.s.s, he would be considered a good risk for life insurance.

Although the pond is commonly covered with snow, or the ice curtained with air bubbles, there have been numerous times during which I have had clear views into the water, and could see and enjoy all that was going on within, as completely as though looking at fish or turtles through the gla.s.s walls of an aquarium. Often I have peered through the ice which covered the most used place of a winter beaver pond,--the area between the house-entrance and the food-pile. The thinness of the ice over this place was maintained by spring-water which came up through the bottom, and the beaver had so arranged their affairs that they made the best use of this shallow-freezing water. Of course most ponds are without springs.

Many a time I have seen a beaver come out of the doorway of his house and go swimming toward the food-pile with his hands against his breast. At the pile, if there was nothing small or short enough, he set to work and gnawed it off. The piece secured was taken into the doorway either in his hands or in his teeth. Afterward a beaver--the same one, I suppose--came out of the doorway, and cast the clean bone of the stick, from which the bark had been eaten, into the bottom of the pond.

When there is nothing else to do, the beaver apparently comes into the pond a few times each day for a swim. In the midst of swimming he rises at times to the under surface of the ice and, with his nose against it, exhales a quant.i.ty of air. After remaining with nose at this point a few seconds, the action of the air bubbles indicates that he is inhaling the purified air.

The rootstocks of the water-lily are sometimes dug from the bottom of the pond. At other times the beaver eats the stalks of plants that grow in the water, or digs out willow or other roots around the edge of the pond. Numbers of trout frequently lie in the water close to the doorway of a beaver house or around the food-pile. Possibly the beaver dispense tidbits of food that are liked by the trout.

Occasionally grubs fall from the holes in wood from which beaver have eaten the bark. While beaver are digging in the bottom of the pond they doubtless unearth food-sc.r.a.ps that are welcome to trout, for these often hover in numbers on the outskirts of the muddy water which beaver roil while digging.

Although it appears that beaver have dull winters with but little to do but eat, sleep, and swim, it is probable that some of their time is spent at work. A part of their tunneling and pond-bottom ca.n.a.l-digging is done in winter. I have known of their extending ca.n.a.ls in the bottom of the pond and making submarine tunnels while the pond was ice-covered.

There are times when the dam has sprung a leak and must be repaired on the inside beneath the ice. Early thaws and spring freshets sometimes wreck a dam beyond repair, or do extensive damage to the house or dam at the time when beaver enemies are likely to be at their leanest. The house and dam are sometimes ruined when the streams are so low and icy that it is not safe for beaver to go about. I know of two colonies that were crushed out of existence by snow-slides.

The dam is on rare occasions broken by late spring ice-jams. Sometimes the ice-cakes pile up on the dam and raise the water in the pond to such a height that it rises in the house and drives the beaver forth.

A few beaver houses that are situated in places where the ice or spring floods may raise the water much above normal level are shaped to meet this trouble. The house is built higher and the room internally is twice the usual height. Thus there is s.p.a.ce for the beaver to build a "platform bed" on the floor and thus raise themselves a foot or more above the common level. Despite all pains, floods sometimes drive beaver to the housetops.

By laying up supplies, and by the help of artificial pond, ca.n.a.l, and house, the beaver is able to spend his winter without hunger and with comfort and far greater safety than his neighbors. The winds may blow and blinding snow or flying limbs may endanger those outside; snow may bury the forage of bird and deer, and make the movement of beasts of prey slow and difficult; the cold may freeze and freeze and strew the wilds with lean and frozen forms; but the beaver beneath ice and snow shelter serenely spends the days with comfort and safety.

The winter, with its days long or short, never comes to an end, however, quite early enough to suit the beaver. They emerge from the pond at the earliest moment that frozen conditions will allow. If their subway is choked with ice, and food becomes exhausted, they will sometimes bore holes through the base of the dam.

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