CHAPTER XV

HORNED OWLS

“We have glanced in a cursory way at a number of our rodents that are

harmful to crops. I pass over in silence the pretty squirrel, a lover

of walnuts and beechnuts, and the industrious beaver, an animal which

may still be found, here and there, along the Rhone. The hare and the

rabbit, too, I willingly give over to the hunter’s rifle. What

protection have we from the devouring hunger of the others—the rats,

the field-mice, and the meadow-mice? How are we to hold them in check?

In our homes we have the cat; outside we have the army of feathered

cats—the nocturnal birds of prey. I will divide these latter into two

classes, to make it easier to distinguish the various species. One has

the head adorned with two tufts of feathers—plumicorns is the term

sometimes used—while the other class lacks this ornament. Horned owls

come under the first classification; hornless owls, or those that may

be called simply owls, come under the second.

“The largest of the horned owls is the eagle-owl. ‘It can easily be

recognized,’ says Buffon, ‘by its burly form, its enormous head, its

large and cavernous ears, the two egrets surmounting its head to a

height of more than two inches and a half, its short hooked beak, black

in color, its great clear eyes with their fixed gaze and large black

pupils, encircled by an orange-colored ruff of feathers, and its face

surrounded by hairs—or, rather, little rudimentary white feathers

bordering a ring of other little feathers that are curled—also by its

black hooked claws of great strength, its very short neck, its reddish

brown plumage spotted with black and yellow on the back, its feet

covered with thick down and reddish feathers to the very roots of the

nails, and, finally, its hair-raising cry of whee-hoo, hoo-hoo,

hoo-hoo, poo-hoo, which it sends forth in the silence of the night when

all the rest of the world is still. Then it is that it awakens its

intended victims, fills them with vague alarm, pursues and catches

them, and carries them off to the caverns where it has its

hiding-place. It lives among the rocks or in old deserted towers in the

mountains, rarely descending into the plains and never willingly

perching on trees, but rather on the roof of some sequestered church or

ancient castle. Its favorite prey consists of young hares, little

rabbits, field-mice, and rats, of which it digests the fleshy substance

and throws up the hair, bones, and skin in round balls. The eagle-owl

makes its nest in some rocky cave or in a hole in some lofty old wall.

Its nest is nearly three feet in diameter, and is made of small dry

branches interwoven with flexible roots and padded with leaves inside.

Only one or two, or rarely as many as three, eggs are found in this

nest. In color they somewhat resemble the bird’s plumage, and in size

they are larger than hens’ eggs.’”

“Those two things like horns that the eagle-owl has on its head—are

they ears?” asked Emile.

“No, my boy, they are egrets, upstanding feathers that give the bird a

warlike appearance. Its ears are not visible, being hidden by the

plumage. They are very large and deep, which explains why the

eagle-owl’s hearing is so wonderfully acute.”

“The eagle-owl,” Louis here observed, “eats field-mice and rats, for

which it is to be thanked; but it also eats young hares and young

rabbits. Isn’t that a pity?”

“For the hunter, I admit; but for the farmer it is quite another thing.

Don’t forget that the hare and the rabbit belong to the order of

rodents; they have incisors which spare nothing in the fields. If they

were left to breed in peace they would prove a serious menace to our

crops. History tells of countries so ravaged by rabbits that it became

necessary to send an army to help the inhabitants get rid of them. We

shall never reach that condition, I am sure; but it is no cause for

regret that the eagle-owl, jointly with the hunter, keeps the animals

within tolerable bounds. Moreover, the bird is very scarce everywhere.

One pair of these birds in a year is the most that you will find in the

mountains about here. An extensive hunting-ground is required by such

big eaters if they are not to starve one another out.

“I have a more serious complaint to bring against the eagle-owl: when

it cannot find its favorite game—meadow-mice, field-mice, and rats—it

contents itself with bats, snakes, toads, lizards, and frogs, and thus

deprives us of some of our best protectors. Be assured, once for all,

that while we have some irreproachable helpers, there are also others

that from our point of view are guilty of a good many misdeeds. Bear in

mind the mole, which throws up the earth and cuts the roots of plants

in its war on insects. No animal gives a moment’s thought to man—except

the dog, who is our friend even more than he is our servant. No other

pays any heed to our interests; all work for themselves and their

young. If their instinct prompts them to destroy only species harmful

to us, so much the better: they are excellent helpers; but if they hunt

both harmful and helpful species, we must balance the total good

against the total harm that they do. If the good tips the scale, let us

respect the animal: it is a helper. If it does more harm than good, let

us declare war on the creature: it is a ravager. The eagle-owl catches

in the fields such formidable hoarders of grain as field-mice and

hamsters; in gardens, dormice and other lovers of fruit; in the

neighborhood of our houses, ordinary mice and rats, and even the

horrible Norway rat. There you have the plea for the defendant. On the

other hand, the hunter charges the bird with killing a certain number

of young rabbits incautiously taking a taste or two of wild thyme by

moonlight, and with appropriating a few young hares that would

otherwise be eaten by human beings. For my part, I accuse it of feeding

its young on the serviceable toad, the useful snake, and the

cricket-eating lizard. There you have the prosecutor’s charge. But, the

balance being struck, the bird’s services are found to outweigh its

misdeeds, and I declare that the eagle-owl deserves well of the

farmer.”

“It is a unanimous verdict,” declared Jules.

“The common horned owl, or lesser eagle-owl,” Uncle Paul continued, “is

much like the bird we have been discussing, only it is far smaller,

being very little larger than a crow, while the other is the size of a

goose. It is the commonest of all the nocturnal birds of prey in these

regions. In the night hours throughout the summer it keeps repeating,

in melancholy accents, its long-drawn and doleful cry of cloo-cloo,

which can be heard a long way off. Just as it takes flight it gives a

sort of bitter sigh, made no doubt by the air expelled from its lungs

by the effort of the wings at the moment of flying off. In the daytime,

confronted by human beings, this bird wears a dazed and foolish

expression. It snaps its beak, stamps its feet, and moves its big head

abruptly up and down and from side to side. If attacked by too strong

an enemy, it lies down on its back and threatens its foe with claws and

beak. It inhabits ruined buildings, caves in rocks, and the hollow

trunks of old trees. Seldom does it take the trouble to build a nest of

its own, preferring to patch up one that has been deserted by a magpie

or a buzzard. There it lays four or five round white eggs. I will

remark in passing that the eggs of nocturnal birds of prey are not oval

like hens’ eggs, but more nearly round. The hunting habits of the

horned owl are like those of the eagle-owl: it has the same liking for

rodents such as field-mice, rats, ordinary mice, and meadow-mice; it

pounces upon young rabbits in the same manner, after patiently watching

for them at the mouth of the burrow. Now let us pass on to another

species.

“The short-horned owl, or large sparrow-owl, resembles the lesser

eagle-owl in plumage and size. The two egrets or plumicorns are very

short, and they seldom stand erect as in the two preceding species.

Because of the shortness of these ‘horns,’ the large sparrow-owl is

often taken for a hornless owl. This species is seldom seen near

dwelling-houses, preferring rocks, quarries, and ruined and solitary

castles. It builds no nest, but is content to lay in a hole in some

wall or rock two or three white eggs, shiny and round, and about as

large as pigeons’ eggs. Its usual cry is goo, uttered rather softly;

but if rain is coming the cry is changed to goyoo. Its diet is mostly

confined to field-mice and meadow-mice.

“The red owl is of about the blackbird’s size. Its plumage is ashy gray

mottled with red and marked with little flecks of black running

lengthwise and fine gray lines running around the body. It is the

smallest and prettiest of our nocturnal birds of prey. When its fine

egrets stand up well on the forehead they give it a bold and martial

air that goes well with its eagerness for the chase.”

“In the picture,” Emile pointed out, “its horns are not standing up.”

“No, the bird is represented in one of its peaceful moments; there is

nothing to arouse it, nothing to attract its attention. It has

withdrawn into itself and is thinking of the fine feast it had when it

last went hunting. It is digesting that feast. But let a mouse come and

scratch anywhere near, and the red owl immediately ruffles its

forehead—the first sign of attention. It straightens up and spreads out

its egrets—a sign of the closest possible attention. It has heard, it

has understood. Off darts the bird and the mouse is caught.

“The smaller rodents are its delight. It seasons them with beetles and

June-bugs—especially the latter which are an aid to digestion. When

larger game is lacking it contents itself with a frugal meal of

insects, hoping to make up for it soon with a good dinner of

meadow-mice.

“Red owls are great travelers. They assemble in companies, sometimes to

migrate for the winter and seek a warmer clime, sometimes to search out

a district where there is plenty of game, when their present haunts no

longer offer enough to suffice them. If field-mice are on the increase

in some particular region and are ravaging the fields of grain and hay,

the red owls hear of it, I don’t know how. They spread the glad

tidings, all club together, and start for the lands where feasting

awaits them. With such zeal do they apply themselves to the work of

extermination that in a few weeks the fields are cleared of the

infesting hordes.

“Red owls nest in hollow trees and clefts in rocks. Their eggs, from

two to four in a nest, are of a shiny white.”

Animal Life in Field and Garden · 第 15 / 54 章