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I WAYS OF NATURE I WAS much amused lately by a half-dozen or more letters that came to me from some Californian schoolchildren, who wrote to ask if I would please tell them whether or not birds have sense. One little girl said: “I would be pleased if you would write and tell me if birds have sense. I wanted to see if I could n’t be the first one to know.” I felt obliged to reply to the children that we ourselves do not have sense enough to know just how much sense the birds and other wild creatures do have, and that they do appear to have some, though their actions are probably the result of what we call instinct, or natural prompting, like that of the beanstalk when it climbs the pole. Yet a bean-stalk will sometimes show a kind of perversity or depravity that looks like the result of deliberate choice. Each season, among my dozen or more hills of pole-beans, there are usually two or three low-minded plants that will not climb the poles, but go groveling upon the ground, wandering off among the potato-vines or cucumbers, departing utterly from the traditions of their race, becoming shiftless and vagrant. When I lift them up and wind them around the poles and tie them with a wisp of grass, they rarely stay. In some way they seem to get a wrong start in life, or else are degenerates from the first. I have never known anything like this among the wild creatures, though it happens often enough among our own kind. The trouble with the bean is doubtless this: the Lima bean is of South American origin, and in the Southern Hemisphere, beans, it seems, go the other way around the pole; that is, from right to left. When transferred north of the equator, it takes them some time to learn the new way, or from left to right, and a few of them are always backsliding, or departing from the new way and vaguely seeking the old; and not finding this, they become vagabonds. How much or how
little sense or judgment our wild neighbors have is hard to determine. The
crows and other birds that carry shell-fish high in the air and then let them
drop upon the rocks to break the shell show something very much like reason, or
a knowledge of the relation of cause and effect, though it is probably an
unthinking habit formed in their ancestors under the pressure of hunger. Froude
tells of some species of bird that he saw in South Africa flying amid the swarm
of migrating locusts and clipping off the wings of the insects so that they
would drop to the earth, where the birds could devour them at their leisure.
Our squirrels will cut off the chestnut burs before they have opened, allowing
them to fall to the ground, where, as they seem to know, the burs soon dry
open. Feed a caged coon soiled food, — a piece of bread or meat rolled on the
ground, — and before he eats it he will put it in his dish of water and wash it
off. The author of “Wild Life Near Home” says that muskrats “will wash what
they eat, whether washing is needed or not.” If the coon washes his food only
when it needs washing, and not in every individual instance, then the
proceeding looks like an act of judgment; the same with the muskrat. But if
they always wash their food, whether soiled or not, the act looks more like
instinct or an inherited habit, the origin of which is obscure. Birds and animals
probably think without knowing that they think; that is, they have not
self-consciousness. Only man seems to be endowed with this faculty; he alone
develops disinterested intelligence, — intelligence that is not primarily concerned
with his own safety and well-being, but that looks abroad upon things. The wit
of the lower animals seems all to have been developed by the struggle for
existence, and it rarely gets beyond the prudential stage. The sharper the
struggle, the sharper the wit. Our porcupine, for instance, is probably the
most stupid of animals and has the least speed; it has little use for either
wit or celerity of movement. It carries a death-dealing armor to protect it
from its enemies, and it can climb the nearest hemlock tree and live on the
bark all winter. The skunk, too, pays for its terrible weapon by dull wits. But
think of the wit of the much-hunted fox, the much-hunted otter, the much-sought
beaver! Even the grouse, when often fired at, learns, when it is started in the
open, to fly with a corkscrew motion to avoid the shot. Fear, love, and
hunger were the agents that developed the wits of the lower animals, as they
were, of course, the prime factors in developing the intelligence of man. But
man has gone on, while the animals have stopped at these fundamental wants, —
the need of safety, of offspring, of food. Probably in a state
of wild nature birds never make mistakes, but where they come in contact with
our civilization and are confronted by new conditions, they very naturally
make mistakes. For instance, their cunning in nest-building sometimes deserts
them. The art of the bird is to conceal its nest both as to position and as to
material, but now and then it is betrayed into weaving into its structure
showy and bizarre bits of this or that, which give its secret away, and which
seem to violate all the traditions of its kind. I have the picture of a robin’s
nest before me, upon the outside of which are stuck a muslin flower, a leaf
from a small calendar, and a photograph of a local celebrity. A more
incongruous use of material in bird architecture it would be hard to find. I
have been told of another robin’s nest upon the outside of which the bird had
fastened a wooden label from a near-by flower-bed, marked “Wake Robin.” Still
another nest I have seen built upon a large, showy foundation of the paper-like
flowers of antennaria, or everlasting. The wood thrush frequently weaves a
fragment of newspaper or a white rag into the foundation of its nest. “Evil
communications corrupt good manners.” The newspaper and the rag-bag unsettle
the wits of the birds. The phoebe-bird is capable of this kind of mistake or
indiscretion. All the past generations of her tribe have built upon natural and,
therefore, neutral sites, usually under shelving and overhanging rocks, and
the art of adapting the nest to its surroundings, blending it with them, has
been highly developed. But phoebe now frequently builds under our sheds and
porches, where, so far as concealment is concerned, a change of material, say
from moss to dry grass or shreds of bark, would be an advantage to her; but she
departs not a bit from the family traditions; she uses the same woodsy mosses,
which in some cases, especially when the nest is placed upon newly sawed
timber, make her secret an open one to all eyes. It does indeed
often look as if the birds had very little sense. Think of a bluebird, or an
oriole, or a robin, or a jay, fighting for hours at a time its own image as
reflected in a pane of glass; quite exhausting itself in its fury to demolish
its supposed rival! Yet I have often witnessed this little comedy. It is
another instance of how the arts of our civilization corrupt and confuse the
birds. It may be that in the course of many generations the knowledge of glass
will get into their blood, and they will cease to be fooled by it, as they may
also in time learn what a poor foundation the newspaper is to build upon. The
ant or the bee could not be fooled by the glass in that way for a moment. Have the birds and our other wild
neighbors sense, as distinguished from instinct? Is a change of habits to meet
new conditions, or the taking advantage of accidental circumstances, an
evidence of sense? How many birds appear to have taken advantage of the
protection afforded by man in building their nests! How many of them build near
paths and along roadsides, to say nothing of those that come close to our
dwellings! Even the quail seems to prefer the borders of the highway to the open
fields. I have chanced upon only three quails’ nests, and these were all by the
roadside. One season a scarlet tanager that had failed with her first nest in
the woods came to try again in a little cherry tree that stood in the open, a
few feet from my cabin, where I could almost touch the nest with my hand as I
passed. But in my absence she again came to grief, some marauder, probably a
red squirrel, taking her eggs. Will her failure in this case cause her to lose
faith in the protective influence of the shadow of a human dwelling? I hope
not. I have known the turtle dove to make a similar move, occupying an old
robin’s nest near my neighbor’s cottage. The timid rabbit will sometimes come
up from the bushy fields and excavate a place for her nest in the lawn a few
feet from the house. All such things look like acts of judgment, though they
may be only the result of a greater fear overcoming a lesser fear. It is in the
preservation of their lives and of their young that the wild creatures come the
nearest to showing what we call sense or reason. The boys tell me that a rabbit
that has been driven from her hole a couple of times by a ferret will not again
run into it when pursued. The tragedy of a rabbit pursued by a mink or a weasel
may often be read upon our winter snows. The rabbit does not take to her hole;
it would be fatal. And yet, though capable of far greater speed, so far as I
have observed, she does not escape the mink; he very soon pulls her down. It
would look as though a fatal paralysis, the paralysis of utter fear, fell upon
the poor creature as soon as she found herself hunted by this subtle, bloodthirsty
enemy. I have seen upon the snow where her jumps had become shorter and
shorter, with tufts of fur marking each stride, till the bloodstains, and then
her half-devoured body, told the whole tragic story. There is probably
nothing in human experience, at this age of the world, that is like the
helpless terror that seizes the rabbits as it does other of our lesser wild
creatures, when pursued by any of the weasel tribe. They seem instantly to be
under some fatal spell which binds their feet and destroys their will power. It
would seem as if a certain phase of nature from which we get our notions of
fate and cruelty had taken form in the weasel. The rabbit, when
pursued by the fox or by the dog, quickly takes to hole. Hence, perhaps, the
wit of the fox that a hunter told me about. The story was all written upon the
snow. A mink was hunting a rabbit, and the fox, happening along, evidently took
in the situation at a glance. He secreted himself behind a tree or a rock, and,
as the rabbit came along, swept her from her course like a charge of shot fired
at close range, hurling her several feet over the snow, and then seizing her
and carrying her to his den up the mountain-side. It would be
interesting to know how long our chimney swifts saw the open chimney-stacks of
the early settlers beneath them before they abandoned the hollow trees in the
woods and entered the chimneys for nesting and roosting purposes. Was the act
an act of judgment, or simply an unreasoning impulse, like so much else in the
lives of the wild creatures? In the choice of
nesting-material the swift shows no change of habit. She still snips off the
small dry twigs from the tree-tops and glues them together, and to the side of
the chimney, with her own glue. The soot is a new obstacle in her way, that she
does not yet seem to have learned to overcome, as the rains often loosen it and
cause her nest to fall to the bottom. She has a pretty way of trying to
frighten you off when your head suddenly darkens the opening above her. At such
times she leaves the nest and clings to the side of the chimney near it. Then,
slowly raising her wings, she suddenly springs out from the wall and back
again, making as loud a drumming with them in the passage as she is capable
of. If this does not frighten you away, she repeats it three or four times. If
your face still hovers above her, she remains quiet and watches you. What a creature of
the air this bird is, never touching the ground, so far as I know, and never
tasting earthly food! The swallow does perch now and then and descend to the
ground for nesting-material; but the swift, I have reason to believe, even
outrides the summer storms, facing them on steady wing, high in air. The twigs
for her nest she gathers on the wing, sweeping along like children on a
“merry-go-round” who try to seize a ring, or to do some other feat, as they
pass a given point. If the swift misses the twig, or it fails to yield to her
the first time, she tries again and again, each time making a wider circuit,
as if to tame and train her steed a little and bring him up more squarely to
the mark next time. The swift is a
stiff flyer: there appear to be no joints in her wings; she suggests something
made of wires or of steel. Yet the air of frolic and of superabundance of
wing-power is more marked with her than with any other of our birds. Her
feeding and twig-gathering seem like asides in a life of endless play. Several
times both in spring and fall I have seen swifts gather in immense numbers
toward nightfall, to take refuge in large unused chimney-stacks. On such
occasions they seem to be coming together for some aerial festival or grand
celebration; and, as if bent upon a final effort to work off a part of their
superabundant wing-power before settling down for the night, they circle and
circle high above the chimney-top, a great cloud of them, drifting this way
and that, all in high spirits and chippering as they fly. Their numbers
constantly increase as other members of the clan come dashing in from all
points of the compass. Swifts seem to materialize out of empty air on all sides
of the chippering, whirling ring, as an hour or more this assembling of the
clan and this flight festival go on. The birds must gather in from whole
counties, or from half a State. They have been on the wing all day, and yet now
they seem as tireless as the wind, and as if unable to curb their powers. One fall they
gathered in this way and took refuge for the night in a large chimney-stack in
a city near me, for more than a month and a half. Several times I went to town
to witness the spectacle, and a spectacle it was: ten thousand of them, I
should think, filling the air above a whole square like a whirling swarm of
huge black bees, but saluting the ear with a multitudinous chippering, instead
of a humming. People gathered upon the sidewalks to see them. It was a rare
circus performance, free to all. After a great many feints and playful
approaches, the whirling ring of birds would suddenly grow denser above the
chimney; then a stream of them, as if drawn down by some power of suction,
would pour into the opening. For only a few seconds would this downward rush
continue; then, as if the spirit of frolic had again got the upper hand of
them, the ring would rise, and the chippering and circling go on. In a minute
or two the same manoeuvre would be repeated, the chimney, as it were, taking
its swallows at intervals to prevent choking. It usually took a half-hour or
more for the birds all to disappear down its capacious throat. There was always
an air of timidity and irresolution about their approach to the chimney, just
as there always is about their approach to the dead tree-top from which they
procure their twigs for nest-building. Often did I see birds hesitate above the
opening and then pass on, apparently as though they had not struck it at just
the right angle. On one occasion a solitary bird was left flying, and it took
three or four trials either to make up its mind or to catch the trick of the
descent. On dark or threatening or stormy days the birds would begin to
assemble by mid-afternoon, and by four or five o’clock were all in their
lodgings. The chimney is a
capacious one, forty or fifty feet high and nearly three feet square, yet it
did not seem adequate to afford breathing-space for so many birds. I was
curious to know how they disposed themselves inside. At the bottom was a small
opening. Holding my ear to it, I could hear a continuous chippering and
humming, as if the birds were still all in motion, like an agitated beehive. At
nine o’clock this multitudinous sound of wings and voices was still going on,
and doubtless it was kept up all night. What was the meaning of it? Was the
press of birds so great that they needed to keep their wings moving to
ventilate the shaft, as do certain of the bees in a crowded hive? Or were these
restless spirits unable to fold their wings even in sleep? I was very curious
to get a peep inside that chimney when the swifts were in it. So one afternoon
this opportunity was afforded me by the removal of the large smoke-pipe of the
old steam-boiler. This left an opening into which I could thrust my head and
shoulders. The sound of wings and voices filled the hollow shaft. On looking
up, I saw the sides of the chimney for about half its length paved with the
restless birds; they sat so close together that their bodies touched. Moreover,
a large number of them were constantly on the wing, showing against the sky
light as if they were leaving the chimney. But they did not leave it. They rose
up a few feet and then resumed their positions upon the sides, and it was this
movement that caused the humming sound. All the while the droppings of the
birds came down like a summer shower. At the bottom of the shaft was a mine of
guano three or four feet deep, with a dead swift here and there upon it.
Probably one or more birds out of such a multitude died every night. I had
fancied there would be many more. It was a long time before it dawned upon me
what this uninterrupted flight within the chimney meant. Finally I saw that it
was a sanitary measure: only thus could the birds keep from soiling each other
with their droppings. Birds digest very rapidly, and had they all continued to
cling to the sides of the wall, they would have been in a sad predicament
before morning. Like other acts of cleanliness on the part of birds, this was
doubtless the prompting of instinct and not of judgment. It was Nature looking
out for her own. In view, then, of
the doubtful sense or intelligence of the wild creatures, what shall we say of
the new school of nature writers or natural history romancers that has lately
arisen, and that reads into the birds and animals almost the entire human
psychology? This, surely: so far as these writers awaken an interest in the
wild denizens of the field and wood, and foster a genuine love of them in the
hearts of the young people, so far is their influence good; but so far as they
pervert natural history and give false impressions of the intelligence of our
animals, catering to a taste that prefers the fanciful to the true and the
real, is their influence bad. Of course the great army of readers prefer this
sugar-coated natural history to the real thing, but the danger always is that
an indulgence of this taste will take away a liking for the real thing, or
prevent its development. The knowing ones, those who can take these pretty
tales with the pinch of salt of real knowledge, are not many; the great
majority are simply entertained while they are being humbugged. There may be no
very serious objection to the popular love of sweets being catered to in this
field by serving up the life-history of our animals in a story, all the missing
links supplied, and all their motives and acts humanized, provided it is not
done covertly and under the guise of a real history. We are never at a loss how
to take Kipling in his “Jungle Book;” we are pretty sure that this is fact
dressed up as fiction, and that much of the real life of the jungle is in these
stories. I remember reading his story of “The White Seal” shortly after I had
visited the Seal Islands in Bering Sea, and I could not detect in the story one
departure from the facts of the life-history of the seal, so far as it is
known. Kipling takes no covert liberties with natural history, any more than he
does with the facts of human history in his novels. Unadulterated,
unsweetened observations are what the real nature-lover craves. No man can
invent incidents and traits as interesting as the reality. Then, to know that a
thing is true gives it such a savor! The truth — how we do crave the truth! We
cannot feed our minds on simulacra any more than we can our bodies. Do assure
us that the thing you tell is true. If you must counterfeit the truth, do it so
deftly that we shall never detect you. But in natural history there is no need
to counterfeit the truth; the reality always suffices, if you have eyes to see
it and ears to hear it. Behold what Maeterlinck makes out of the life of the
bee, simply by getting at and portraying the facts — a true wonder-book, the
enchantment of poetry wedded to the authority of science. Works on animal
intelligence, such as Romanes’s, abound in incidents that show in the animals
reason and forethought in their simpler forms; but in many cases the incidents
related in these works are not well authenticated, nor told by trained
observers. The observations of the great majority of people have no scientific
value whatever. Romanes quotes from some person who alleges that he saw a pair
of nightingales, during a flood in the river near which their nest was placed,
pick up the nest bodily and carry it to a place of safety. This is incredible.
If Romanes himself or Darwin himself said he saw this, one would have to
believe it. Birds whose nests have been plundered sometimes pull the old nest
to pieces and use the material, or parts of it, in building a new nest; but I
cannot believe that any pair of birds ever picked up a nest containing eggs and
carried it off to a new place. How could they do it? With one on each side, how
could they fly with the nest between them? They could not carry it with their
feet, and how could they manage it with their beaks? My neighbor met in
the woods a black snake that had just swallowed a red squirrel. Now your romance-naturalist
may take such a fact as this and make as pretty a story of it as he can. He may
ascribe to the snake and his victim all the human emotions he pleases. He may
make the snake glide through the tree-tops from limb to limb, and from tree to
tree, in pursuit of its prey: the main thing is, the snake got the squirrel. If
our romancer makes the snake fascinate the squirrel, I shall object, because I
don’t believe that snakes have this power. People like to believe that they
have. It would seem as if this subtle, gliding, hateful creature ought to have
some such mysterious gift, but I have no proof that it has. Every year I see
the black snake robbing birds’-nests, or pursued by birds whose nests it has
just plundered, but I have yet to see it cast its fatal spell upon a grown
bird. Or, if our romancer says that the black snake was drilled in the art of
squirrel-catching by its mother, I shall know he is a pretender. Speaking of snakes
reminds me of an incident I have several times witnessed in our woods in connection
with a snake commonly called the sissing or blowing adder. When I have teased
this snake a few moments with my cane, it seems to be seized with an epileptic
or cataleptic fit. It throws itself upon its back, coiled nearly in the form of
a figure eight, and begins a series of writhings and twistings and convulsive
movements astonishing to behold. Its mouth is open and presently full of
leaf-mould, its eyes are covered with the same, its head is thrown back, its
white belly up; now it is under the leaves, now out, the body all the while
being rapidly drawn through this figure eight, so that the head and tail are
constantly changing place. What does it mean? Is it fear? Is it a real fit? I
do not know, but any one of our romance-naturalists could tell you at once. I
can only suggest that it may be a ruse to baffle its enemy, the black snake,
when he would attempt to crush it in his folds, or to seize its head when he
would swallow it. I am reminded of
another mystery connected with a snake, or a snake-skin, and a bird. Why does
our great crested flycatcher weave a snake-skin into its nest, or, in lieu of
that, something that suggests a snake-skin, such as an onion-skin, or fish-scales,
or a bit of oiled paper? It is thought by some persons that it uses the
snake-skin as a kind of scarecrow, to frighten away its natural enemies. But
think what this purpose in the use of it would imply. It would imply that the
bird knew that there were among its enemies creatures that were afraid of
snakes — so afraid of them that one of their faded and cast-off skins would
keep these enemies away. How could the bird obtain this knowledge? It is not
afraid of the skin itself; why should it infer that squirrels, for instance,
are? I am convinced there is nothing in this notion. In all the nests that have
come under my observation, the snake-skin was in faded fragments woven into the
texture of the nest, and one would not be aware of its presence unless he
pulled the nest to pieces. True, Mr. Frank Bolles reports finding a nest of
this bird with a whole snake-skin coiled around a single egg; but it was the
skin of a small garter-snake, six or seven inches long, and could not therefore
have inspired much terror in the heart of the bird’s natural enemies. Dallas
Lore Sharp, author of that delightful book, “Wild Life Near Home,” tells me he
has seen a whole skin dangling nearly its entire length from the hole that
contained the nest, just as he has seen strings hanging from the nest of the
kingbird. The bird was too hurried or too careless to pull in the skin. Mr.
Sharp adds that he cannot “give the bird credit for appreciating the attitude
of the rest of the world toward snakes, and making use of the fear.” Moreover,
a cast-off snake-skin looks very little like a snake. It is thin, shrunken,
faded, papery, and there is no terror in it. Then, too, it is dark in the
cavity of the nest, consequently the skin could not serve as a scarecrow in any
case. Hence, whatever its purpose may be, it surely is not that. It looks like
a mere fancy or whim of the bird. There is that in its voice and ways that
suggests something a little uncanny. Its call is more like the call of the toad
than that of a bird. If the toad did not always swallow its own cast-off skin,
the bird would probably use that too. At the best we can
only guess at the motives of the birds and beasts. As I have elsewhere said,
they nearly all have reference in some way to the self-preservation of these
creatures. But how the bits of an old snake-skin in a bird’s nest can
contribute specially to this end, I cannot see. Nature is not
always consistent; she does not always choose the best means to a given end.
For instance, all the wrens except our house wren seem to use about the best
material at hand for their nests. What can be more unsuitable, untractable, for
a nest in a hole or cavity than the twigs the house wren uses? Dry grasses or
bits of soft bark would bend and adapt themselves easily to the exigencies of
the case; but stiff, unyielding twigs! What a contrast to the suitableness of
the material the hummingbird uses — the down of some plant, which seems to have
a poetic fitness! Yesterday in my
walk I saw where a red squirrel had stripped the soft outer bark off a group of
red cedars to build its winter’s nest with. This also seemed fit, — fit that
such a creature of the trees should not go to the ground for its nest-material,
and should choose something soft and pliable. Among the birches, it probably
gathers the fine curling shreds of the birch bark. Beside my path in
the woods a downy woodpecker, late one fall, drilled a hole in the top of a
small dead black birch for his winter quarters. My attention was first called
to his doings by the white chips upon the ground. Every day as I passed I would
rap upon his tree, and if he was in he would appear at his door and ask plainly
enough what I wanted now. One day when I rapped, something else appeared at the
door — I could not make out what. I continued my rapping, when out came two
flying-squirrels. On the tree being given a vigorous shake, it broke off at the
hole, and the squirrels went sliding down the air to the foot of a hemlock, up
which they disappeared. They had dispossessed Downy of his house, had carried
in some grass and leaves for a nest, and were as snug as a bug in a rug. Downy
drilled another cell in a dead oak farther up the hill, and, I hope, passed the
winter there unmolested. Such incidents, comic or tragic, as they chance to
strike us, are happening all about us, if we have eyes to see them. The next season,
near sundown of a late November day, I saw Downy trying to get possession of a
hole not his own. I chanced to be passing under a maple, when white chips upon
the ground again caused me to scrutinize the branches overhead. Just then I saw
Downy come to the tree, and, hopping around on the under side of a large dry
limb, begin to make passes at something with his beak. Presently I made out a
round hole there, with something in it returning Downy’s thrusts. The sparring
continued some moments. Downy would hop away a few feet, then return to the
attack, each time to be met by the occupant of the hole. I suspected an English
sparrow had taken possession of Downy’s cell in his absence during the day, but
I was wrong. Downy flew to another branch, and I tossed up a stone against the
one that contained the hole, when, with a sharp, steely note, out came a hairy
woodpecker and alighted on a near-by branch. Downy, then, had the “cheek” to
try to turn his large rival out of doors — and it was Hairy’s cell, too; one
could see that by the size of the entrance. Thus loosely does the rule of meum and tuum
obtain in the woods. There is no moral code in nature. Might reads right. Man
in communities has evolved ethical standards of conduct, but nations, in their
dealings with one another, are still largely in a state of savage nature, and
seek to establish the right, as dogs do, by the appeal to battle. One season a wood
duck laid her eggs in a cavity in the top of a tall yellow birch near the
spring that supplies my cabin with water. A bold climber “shinned” up the fifty
or sixty feet of rough tree-trunk and looked in upon the eleven eggs. They were
beyond the reach of his arm, in a well-like cavity over three feet deep. How
would the mother duck get her young up out of that well and down to the ground?
We watched, hoping to see her in the act. But we did not. She may have done it
at night or very early in the morning. All we know is that when Amasa one
morning passed that way, there sat eleven little tufts of black and yellow down
in the spring, with the mother duck near by. It was a pretty sight. The feat of
getting down from the tree-top cradle had been safely effected, probably by the
young clambering up on the inside walls of the cavity and then tumbling out
into the air and coming down gently like huge snowflakes. They are mostly
down, and why should they not fall without any danger to life or limb? The
notion that the mother duck takes the young one by one in her beak and carries
them to the creek is doubtless erroneous. Mr. William Brewster once saw the
golden-eye, whose habits of nesting are like those of the wood duck, get its
young from the nest to the water in this manner: The mother bird alighted in
the water under the nest, looked all around to see that the coast was clear,
and then gave a peculiar call. Instantly the young shot out of the cavity that
held them, as if the tree had taken an emetic, and came softly down to the water
beside their mother. Another observer assures me that he once found a newly
hatched duckling hung by the neck in the fork of a bush under a tree in which a
brood of wood ducks had been hatched. The ways of nature,
— who can map them, or fathom them, or interpret them, or do much more than
read a hint correctly here and there? Of one thing we may be pretty certain,
namely, that the ways of wild nature may be studied in our human ways, inasmuch
as the latter are an evolution from the former, till we come to the ethical
code, to altruism and self-sacrifice. Here we seem to breathe another air,
though probably this code differs no more from the animal standards of conduct
than our physical atmosphere differs from that of early geologic time. Our moral code must
in some way have been evolved from our rude animal instincts. It came from
within; its possibilities were all in nature. If not, where were they? I have seen
disinterested acts among the birds, or what looked like such, as when one bird
feeds the young of another species when it hears them crying for food. But that
a bird would feed a grown bird of another species, or even of its own, to keep
it from starving, I have my doubts. I am quite positive that mice will try to
pull one of their fellows out of a trap, but what the motive is, who shall say?
Would the same mice share their last crumb with their fellow if he were
starving? That, of course, would be a much nearer approach to the human code,
and is too much to expect. Bees will clear their fellows of honey, but whether
it be to help them, or to save the honey, is a question. In my youth I saw a
parent weasel seize one of its nearly grown young which I had wounded and carry
it across an open barway, in spite of my efforts to hinder it. A friend of mine,
who is a careful observer, says he once wounded a shrike so that it fell to the
ground, but before he got to it, it recovered itself and flew with difficulty
toward some near trees, calling to its mate the while; the mate came and seemed
to get beneath the wounded bird and buoy it up, so aiding it that it gained the
top of a tall tree, where my friend left it. But in neither instance can we
call this helpfulness entirely disinterested, or pure altruism. Emerson said that
he was an endless experimenter with no past at his back. This is just what
Nature is. She experiments endlessly, seeking new ways, new modes, new forms,
and is ever intent upon breaking away from the past. In this way, as Darwin
showed, she attains to new species. She is blind, she gropes her way, she
trusts to luck; all her successes are chance hits. Whenever I look over my
right shoulder, as I sit at my desk writing these sentences, I see a long
shoot of a honeysuckle that came in through a crack of my imperfectly closed
window last summer. It came in looking, or rather feeling, for something to
cling to. It first dropped down upon a pile of books, then reached off till it
struck the windowsill of another large window; along this it crept, its
regular leaves standing up like so many pairs of green ears, looking very
pretty. Coming to the end of the open way there, it turned to the left and
reached out into vacancy, till it struck another window-sill running at right
angles to the former; along this it traveled nearly half an inch a day, till it
came to the end of that road. Then it ventured out into vacant space again, and
pointed straight toward me at my desk, ten feet distant. Day by day it kept its
seat upon the window-sill, and stretched out farther and farther, almost
beckoning me to give it a lift or to bring it support. I could hardly resist
its patient daily appeal. Late in October it had bridged about three feet of
the distance that separated us, when, one day, the moment came when it could
maintain itself outright in the air no longer, and it fell to the floor. “Poor
thing,” I said, “your faith was blind, but it was real. You knew there was a
support somewhere, and you tried all ways to find it.” This is Nature. She
goes around the circle, she tries every direction, sure that she will find a
way at some point. Animals in cages behave in a similar way, looking for a
means of escape. In the vineyard I see the grape-vines reaching out blindly in
all directions for some hold for their tendrils. The young arms seize upon one
another and tighten their hold as if they had at last found what they were in
search of. Stop long enough beside one of the vines, and it will cling to you
and run all over you. Behold the
tumble-bug with her ball of dung by the roadside; where is she going with it?
She is going anywhere and everywhere; she changes her direction, like the vine,
whenever she encounters an obstacle. She only knows that somewhere there is a
depression or a hole in which her ball with its egg can rest secure, and she
keeps on tumbling about till she finds it, or maybe digs one, or comes to grief
by the foot of some careless passer-by. This, again, is Nature’s way, randomly
and tirelessly seeking her ends. When we look over a large section of history,
we see that it is man’s way, too, or Nature’s way in man. His progress has been
a blind groping, the result of endless experimentation, and all his failures
and mistakes could not be written in a book. How he has tumbled about with his
ball, seeking the right place for it, and how many times has he come to grief!
All his successes have been lucky hits: steam, electricity, representative
government, printing — how long he groped for them before he found them! There
is always and everywhere the Darwinian tendency to variation, to seek new
forms, to improve upon the past; and man is under this law, the same as is the
rest of nature. One generation of men, like one generation of leaves, becomes
the fertilizer of the next; failures only enrich the soil or make smoother the
way. There are so many
conflicting forces and interests, and the conditions of success are so complex!
If the seed fall here, it will not germinate; if there, it will be drowned or
washed away; if yonder, it will find too sharp competition. There are only a
few places where it will find all the conditions favorable. Hence the
prodigality of Nature in seeds, scattering a thousand for one plant or tree.
She is like a hunter shooting at random into every tree or bush, hoping to
bring down his game, which he does if his ammunition holds out long enough; or
like the British soldier in the Boer War, firing vaguely at an enemy that he
does not see. But Nature’s ammunition always holds out, and she hits her mark
in the end. Her ammunition on our planet is the heat of the sun. When this
fails, she will no longer hit the mark or try to hit it. Let there be a plum tree anywhere with the disease called the “black-knot” upon it, and presently every plum tree in its neighborhood will have black knots. Do you think the germs from the first knot knew where to find the other plum trees? No; the wind carried them in every direction, where the plum trees were not as well as where they were. It was a blind search and a chance hit. So with all seeds and germs. Nature covers all the space, and is bound to hit the mark sooner or later. The sun spills his light indiscriminately into space; a small fraction of his rays hit the earth, and we are warmed. Yet to all intents and purposes it is as if he shone for us alone. |