Читать книгу Poachers and Poaching - John F.L.S. Watson - Страница 5

The power of flight being almost exclusively the characteristic attribute of birds, it is somewhat strange that even the most eminent naturalists should be silent upon it. And yet this is almost universally so. Those who mention the speed of flight do so upon the most insufficient evidence, as witness Michelet's statement that the swallow flies at the rate of eighty leagues an hour. Roughly this gives us a thousand miles in four hours; but assuredly, even in its dashes, the swallow does not attain to anything like this speed. The Duke of Argyll is rather under than over the mark when he computes the speed at more than a hundred miles an hour. Here, however, the mechanism of flight in the swallows is carried through an ascending scale, until in the swift it reaches its highest degree of power both in endurance and facility of evolution. Although there are birds which may, and probably do, attain to a speed of one hundred and fifty miles an hour, this remarkable rate is not to be looked for in any of the birds of the swallow kind. There is something fascinating in the idea of eliminating time and space, and with this attribute popular fancy has in some measure clothed the swallows. At the greater rate of speed indicated above the swallow might, as has been stated, breakfast round the Barbican, and take its mid-day siesta in Algiers. This, however, is a popular myth. In their migrations swallows stick close to land, and never leave it unless compelled; they cross straits at the narrowest part, and are among the most fatiguable of birds. From this it will be seen that although swallows may possess considerable speed, they have no great powers of sustained flight or endurance. These attributes belong, in the most marked degree, to several ocean birds.

Any one who has crossed the Atlantic must have noticed that gulls accompany the ship over the whole distance; or, at least, are never absent throughout the voyage. The snowy "sea swallows," as the terns are called, seem quite tireless on the wing; though the petrels and albatross alone deserve the name of oceanic birds. Sir Edwin Arnold, in an account of his voyage to America, writes as follows of the sea-swallows: "Every day we see playing round the ship and skimming up and down the wave-hollows companies of lovely little terns and sea-swallows, the latter no larger than thrushes. These fearless people of the waste have not by any means followed us from land, living, as gulls often will, on the waste thrown from the vessel. They are vague and casual roamers of the ocean, who spying the great steamship from afar, have sailed close up, to see if we are a rock or an island, and will then skim away on their own free and boundless business. Yonder tiny bird with purple and green plumage, his little breast and neck laced with silver, is distant one thousand miles at this moment from a drop of fresh water, and yet cares no more for the fact than did the Irish squire who 'lived twelve miles from a lemon.' If his wings ever grow weary it is but to settle quietly on the bosom of a great billow and suffer it for a time to rock and roll him amid this hissing spendrift, the milky flying foam, and the broken sea-lace which forms and gleams and disappears again upon the dark slopes. When he pleases, a stroke of the small red foot and a beat of the wonderful wing launch him off from the jagged edge of his billow, and he flits past us at one hundred knots an hour, laughing steam and canvas to scorn, and steering for some nameless crag in Labrador or Fundy, or bound, it may be, homeward for some island or marsh of the far-away Irish coast. Marvellously expressive of power as is our untiring engine, which all day and all night throbs and pants and pulses in noisy rhythm under the deck, what a clumsy affair it is compared to the dainty plumes and delicate muscles which carry that pretty, fearless sea-swallow back to his roost."

No deserts seem to bound the range of the petrels, and they are found at every distance from land. Different species inhabit every ocean—from the fulmar in the far north to the giant petrel which extends its flight to the icebanks of the south. Here the Antarctic and snowy petrels appear, floating upon the drift ice, and never leaving these dreary seas. Another bird of immense wing power is the tiny stormy petrel, the smallest web-footed bird known. It belongs to every sea, and although so seeming frail it breasts the utmost fury of the storm, skimming with incredible velocity the trough of the waves, and gliding rapidly over their snowy crests. Petrels have been observed two thousand miles from nearest land, whilst at half that distance Sir James Ross once saw a couple of penguins quietly paddling in the sea. A pair of the rudimentary wings of this bird are lying before me as I write. These are simply featherless paddles, but by their aid so rapidly does the bird swim that it almost defies many of the fishes to equal it. The enormous appetite of the giant penguin (which weighs about eighty pounds) may have something to do with its restricted powers of flight, and in the stomach of one of these Ross found ten pounds of quartz, granite, and trap fragments, swallowed most likely to promote digestion.

But surely the lord of the winged race is the bird which does not rest; and this may almost be said of the man-of-war or frigate bird. He is a navigator who never reaches his bourne, and from his almost ceaseless flight it would seem as though earth and sea were equally prohibited to him. To a bird with such an immense and superior wing apparatus, the metaphor, "he sleeps upon the storm," becomes almost literal. This black, solitary bird is nearly nothing more than wings, his prodigious pinions measuring fifteen feet, even surpassing those of the condor of the Andes. Although sometimes seen four hundred leagues from land, the frigate bird is said to return every night to its solitary roost.

Of all birds, the albatross has, perhaps, the most extended powers of flight. It has been known to follow a vessel for several successive days without once touching the water except to pick up floating food; and even then it does not rest. In describing the flight of this bird from personal observation, Captain Hutton writes as follows: "The flight of the albatross is truly majestic, as with outstretched motionless wings he sails over the surface of the sea—now rising high in the air, now with a bold sweep and wings inclined at an angle with the horizon, descending until the tip of the lower one all but touches the crests of the waves as he skims over them. I have sometimes watched narrowly one of these birds sailing and wheeling about in all directions for more than an hour without seeing the slightest movement of the wings, and have never witnessed anything to equal the ease and grace of this bird as he sweeps past, often within a few yards—every part of his body perfectly motionless except the head and eye, which turn slowly and seem to take notice of everything. 'Tranquil its spirit seemed and floated slow; even in its very motion there was rest.'" But these birds and the frigate bird are sea and ocean species, and, with rare exceptions, are able to rest upon the waters. This, however, cannot be said of many of the land birds, and here observation is easier.

As an antithesis to the apparently lifeless wings of the albatross, Pettigrew compares the ceaseless activity of those of the humming-bird. In these delicate and exquisitely beautiful birds, the wings, according to Gould, move so rapidly when the bird is poised before an object that it is impossible for the eye to follow each stroke, and a hazy circle of indistinctness on each side the bird is all that is perceptible. When a humming-bird flies in a horizontal direction, it occasionally proceeds with such velocity as altogether to elude observation. Mention of the calm majestic flight of the albatross suggests the possibility of birds resting on the wing. An American naturalist asserts that birds of prey and some others have the power to lock securely together those parts of the wing holding the extended feathers, and corresponding to the fingers of the human hand. The action of the air on the wing in this condition extends the elbow, which is prevented from opening too far by a cartilage, and the wings may keep this position for an indefinite length of time, with no muscular action whatever on the part of the bird. While resting in this way, the bird cannot rise in a still atmosphere; but if there be a horizontal current, it may allow itself to be carried along by it, with a slight tendency downward, and so gain a momentum by which, with a slight change of direction, it may rise to some extent, still without muscular action of the wings. This same naturalist also believes it quite possible for birds to sleep on the wing. As bearing on this subject, Professor J. S. Newbury asserts that he once shot a bird which came slowly to the ground as if still flying, but reached it dead. He believed that it had died high in the air; but had never been able to account for the manner of its descent till now, when he found an explanation in the statement just given.

Thousands of gold-crests annually cross and recross the North Sea at the wildest periods of the year, and unless the weather is rough generally make their migrations in safety. And yet this is the smallest and frailest British bird—a mere fluff of feathers, weighing only seventy grains. Another of the tits, the oxeye, has been met upon two occasions at six hundred and nine hundred miles from land. With regard to those birds which cross the Atlantic, it matters not for our purpose whether they are driven by stress of weather or cross voluntarily—suffice it they come. Less likely birds that have occurred in Britain are the belted kingfisher and American yellow-billed cuckoo. The white-winged crossbill must be mentioned with less certainty, for, although a North American bird, it is also found in some northern European countries.

All birds of great and sustained powers of flight have one well-marked characteristic—they have long wings, with sharply-pointed ends. The general truth of this will be at once admitted if the rule be applied to the various species mentioned above. Another point is worthy of notice. The apparent speed of flight to an unpractised eye is most deceptive. A heron, as it rises and flaps languidly along the course of a brook, appears not only to progress slowly but to use its wings in like manner. Yet the Duke of Argyll has pointed out, and any one may verify the statement by his watch, that the heron seldom flaps his wings at a rate of less than from one hundred and twenty to one hundred and fifty times in a minute. This is counting only the downward strokes, so that the bird really makes from two hundred and forty to three hundred separate movements a minute. The rook and heron fly in almost straight lines, have large rounded wings, and float with the greatest ease upon the air. The rook in its measured flight makes about five-and-twenty miles an hour; the heron thirty. Our short-winged game birds fly with incredible velocity, and any attempt to observe or count their wing movements leaves but a blurred impression on the eye, whilst in some species so quick is the vibratory movement as to prevent its being seen. Driven grouse flying "down wind" have been known to seriously stun sportsmen by falling upon their heads. A grouse does not move its wings so rapidly as a partridge, though the late C. S. was once clean knocked out of a battery by a grouse he had shot falling upon him; and in this way loaded guns have frequently been fired by dead birds. The Duke of Beaufort upon one occasion picked up a brace of grouse which had cannoned and killed each other in mid-air, and colliding is not an unfrequent occurrence. As illustrating a remarkable quality of flight, the case of the kestrel or windhover may be taken. On a summer day one may frequently see this pretty little falcon standing against the blue in what seems an absolutely stationary position, as though suspended by an invisible silken thread. But let a meadow-mouse so much as move and it drops to the sward in an instant.

As has been already stated, there is perhaps nothing more wonderful in nature than the power of flight, and no subject which yields such startling facts upon investigation. "The way of an eagle in the air" is one of those things of which Solomon expressed himself ignorant; and there is something truly marvellous in the mechanism which controls the scythe-like sweep of wings peculiar to most birds of prey. The noblest of these, the peregrine, has been seen flying over mid-Atlantic; and Henry IV., King of France, had a falcon which escaped from Fontainebleau, and in twenty-four hours after was found in Malta, a space computed to be not less than 1,350 miles, a velocity equal to fifty-six miles an hour, supposing the hawk to have been on the wing the whole time. Indeed, in Montagu's opinion, the rapidity with which hawks and other birds occasionally fly is probably not less than at the rate of a hundred and fifty miles an hour, when either pursued or pursuing. The speed of flight of the peregrine cited above is about that of our best trained pigeons; and it may here be remarked that the flight of these two (otherwise dissimilar) birds very much resembles each other. The beautiful swallow-tailed kite has accomplished the feat of flying across the whole Atlantic Ocean, which is hardly to be wondered at seeing its vast powers of flight. Lieuwenholk relates an exciting chase which he saw in a menagerie about one hundred feet long between a swallow and a dragon-fly (Mordella). The insect flew with incredible speed, and wheeled with such address that the swallow, notwithstanding its utmost efforts, completely failed to overtake and capture it. The best speed of a railway train is only a little more than half the velocity of the golden eagle, the flight of which often attains to the rate of one hundred and forty miles an hour. Of all birds, the condor mounts highest into the atmosphere. Humboldt describes the flight of this bird in the Andes to be at least twenty thousand feet above the level of the sea. Upon one occasion a falcon was observed to cut a snipe right in two, with such strength and speed did it cut down its prey. Sparrow-hawks and merlins have not unfrequently been known to crash through thick plate-glass windows when in pursuit of prey, or at caged birds.

Of all British birds, none is so beautiful or so secluded in its habits as the kingfisher. Its presence is peculiarly in keeping with the rapid rocky trout streams which it loves to haunt. Its low, arrow-like flight, as it darts like a streak of azure, green, and gold, is familiar to every angler. He hears it far down stream; it comes under the old ivied bridge, passes like a flash, and is gone—how quickly the following will show. Mr. George Rooper, the well-known Biographer of the Salmon, was travelling on the Great Western Railway, which between Pangbourne and Reading runs parallel with, and close to, the Thames. As the train approached the river a kingfisher started from the bank and flew along the river for nearly a mile. Mr. Rooper watched it the whole distance, and its relative position with the window never varied a yard; the bird flying at exactly the same pace as that at which the train travelled, and which the observer had just previously ascertained to be fifty-five miles an hour. This is about half the speed at which the eider-duck flies, as, when fairly on the wing, it makes upwards of one hundred and twenty miles an hour. The rapidity with which all birds of the plover kind fly is well known, and a "trip" of golden plover have been seen midway between Hawaii and the mainland. An officer in Donald Currie's line recently brought home with him a specimen of the St. Helena waxbill which he caught when on watch on the bridge of the Grantully Castle. At the time the nearest land was distant a thousand miles, and the little captive was so distressed that it quietly allowed the officer to capture it.

It has been computed that a red-throated diver swims about four and a half miles on the surface of the water, and between six and seven beneath the surface per hour. Macgillivray states that upon one occasion he watched a flock of red-breasted mergansers pursuing sand eels, when the birds seemed to move under the water with almost as much velocity as in the air, and often rose to breathe at a distance of two hundred yards from the spot at which they had dived. To show to what depth this bird flies beneath the water it may be mentioned that one was caught in a net at thirty fathoms; while a shag, or green cormorant, has been caught in a crab pot fixed at twenty fathoms below the surface; and guillemots literally fly under water without even using their feet. As bearing directly on the interesting subject of flight under water the case of another of the divers may be mentioned. It has been said that one of the strong and original strokes of nature was when she made the "loon," a bird which represents the wildness and solitariness of the wildest and most solitary spots. It dives with such marvellous quickness that the shot of the gunner gets there just in time to cut across a circle of descending tail feathers and a couple of little jets of water flung upward by the web feet of the loon. Speaking of this bird Burroughs says that in the water "its wings are more than wings. It plunges into this denser air, and flies with incredible speed. Its head and beak form a sharp point to its tapering neck. Its wings are far in front, and its legs equally far in the rear, and its course through the crystal depths is like the speed of an arrow. In the northern lakes it has been taken forty feet under water upon hooks baited for the great lake trout. I had never seen one till last fall, when one appeared on the river in front of my house. I knew instantly it was the loon. Who could not tell a loon a half-mile or more away, though he had never seen one before? The river was like glass, and every movement of the bird as it sported about broke the surface into ripples, that revealed it far and wide. Presently a boat shot out from shore, and went ripping up the surface toward the loon. The creature at once seemed to divine the intentions of the boatman, and sidled off obliquely, keeping a sharp look-out as if to make sure it was pursued. A steamer came down and passed between them, and when the way was again clear the loon was still swimming on the surface. Presently it disappeared under the water, and the boatman pulled sharp and hard. In a few moments the bird reappeared some rods further on, as if to make an observation. Seeing it was being pursued, and no mistake, it dived quickly, and when it came up again had gone many times as far as the boat had in the same space of time. Then it dived again, and distanced its pursuer so easily that he gave over the chase and rested upon his oars. But the bird made a final plunge, and when it emerged upon the surface again it was over a mile away. Its course must have been, and doubtless was, an actual flight under water, and half as fast as the crow flies in the air. The loon would have delighted the old poets. Its wild, demoniac laughter awakens the echoes on the solitary lakes, and its ferity and hardiness were kindred to those robust spirits." Another specially interesting bird which does something nearly approaching to flying under water is the dipper. The ouzel is essentially a bird of the running brook, though as to what part this pretty white-breasted thrush plays in the economy of nature naturalists are by no means agreed. Its most frequent stand is upon some mossy stone in a river reach, and here its crescented form may oftenest be seen. It haunts the brightly-running streams in winter as in summer, and when these are transformed into roaring torrents seems to love them best. Let us watch it awhile. It dashes through the spray and into the white foam, performing its morning ablutions. Then it emerges to perch on a stone, always jerking its body about, and dipping, dipping, ever dipping. Presently it melts into the water like a bubble, but immediately emerges to regain its seat, then trills out a loud wren-like song, but, breaking off short, again disappears. We are standing on an old stone bridge, and are enabled to observe it closely. By a rapid, vibratory motion of the wings, it drives itself down through the water, and by the aid of its wide-spreading feet clings to and walks among the pebbles. These it rapidly turns over with its bill, searching for the larvæ of water flies and gauzy-winged ephemeræ. It searches the brook carefully downwards, sometimes clean immersed, at other times with its back out, then with the water barely covering its feet. It does not always work with the stream, as we have frequently seen him struggling against it, but retaining its position upon the bottom. Even at the present day there are naturalists who, from the examination of cabinet specimens, aver that it is not in the power of the bird to walk on the bottom of the brook, but then they know nothing of him along his native streams.

Taking advantage of two birds remarkable for their long and sustained powers of flight, experiments have recently been conducted with a view to utilising swallows and pigeons as war messengers. In this connection the use of trained pigeons is one of the oldest institutions in the world; though now that certain European Powers have trained falcons to cut down pigeons, it is said that the pigeon-post is not sufficiently reliable. In consequence a number of French savants recently approached the Minister of War, and induced him to found a military swallow-cote whence the birds might be trained. The Governor of Lille was charged to test the plan, and certain experiments made at Roubaix last year are now commanded to be repeated under the supervision of Captain Degouy of the Engineers. During the coming autumn this gentleman is to be present at a grand flight of messenger swallows; and if his report is favourable, a swallow-cote will be founded and placed under the care of special trainers at Mont Valérian. The idea of engaging swallows in war is a pretty one, as in future all European wars will have to be conducted in "Swallow-time"—when the warm winds blow from the sunny south. This arrangement will at least obviate night-watches in frozen trenches; nor is it likely that pickets will any longer be starved to death at their posts. The incident is also quoted in proof of the fact that we are nearing the time when Europe will be governed by the Parliament of Man, the Federation of the World. But, after all, the idiosyncrasies of France have a way of not being fulfilled; and the reign of the swallow will doubtless be as ephemeral as that of the brav' Général himself. In all their military operations of late the French have made considerable use of pigeons in conveying despatches; and in the Franco-German war the birds played a conspicuous part. Upon several occasions, indeed, the inhabitants of beleaguered cities looked upon the successful flights of these birds as their only hope betwixt death and starvation.

At the time the French were making trials with messenger swallows, the young German Emperor ordered extensive experiments to be carried out with carrier pigeons, the same to be tested at the Imperial manœuvres. Upon this, six of the first Columbarian Societies of Germany each offered to supply twenty-four birds, which are now in training. So we have it that the French are endeavouring to train swallows, the Germans pigeons, and the Russians falcons. Whether the falcons are themselves to convey messages, or are to be used to cut down the swallows and pigeons whilst so engaged, is not stated. The pigeon is a tried messenger, and has, moreover, some interesting and remarkable records. The claim of the swallow, on the other hand, lies all in its possibilities. In this connection "swallow" must stand in a generic sense, and include all birds of the swallow kind as well as the swift. Although, as already stated, swallows are among the most fatiguable of birds, yet one of the American species—the purple martin—would seem to be an exception, and the fact of its having crossed the Atlantic is well known. It is true that swallows attain to an immense speed in their rushes, and there is a well-authenticated instance of one having flown twenty miles in thirteen minutes. The probable speed of the swallow, flying straight and swift, is about one hundred and twenty miles an hour; its ordinary speed ninety miles. The swift attains to two hundred miles, and seems quite tireless on the wing. If swifts can be inspired with a sense of discipline; if French wars can invariably be arranged for the summer months; and if some arrangement can be made with the insect hosts to keep the upper air—then something may come of the Lille experiments. If these things cannot be, the French sharpshooter will never be asked to try flying shots at swifts rushing through the air at the rate of two hundred miles an hour. If the Russians are training falcons to catch pigeons, the Germans must train raptors to catch swallows. Here is a fact which proves the possibility. The hobby falcon, a summer migrant to Britain, hawks for dragon-flies—among the swiftest of insects—which it seizes with its foot and devours in mid-air. It cuts down swifts, larks, pigeons, and, where they are found, bee-birds—all remarkable for their great powers of flight. By way of testing the speed of flight in birds of the swallow kind, Spallanzani captured and marked a sand-martin or bank-swallow—the feeblest of its genus—on her nest at Pavia and set her free at Milan, fifteen miles away. She flew back in thirteen minutes. In striking contrast with the rate at which birds with long pointed wings fly is the fact that one of a pair of starlings (which are short-winged birds) was captured and sent in a basket a distance of upwards of thirty miles by train. It was then freed, and was three hours before it found its way back to its nestlings.

To turn from swallows to pigeons. The power of pigeons on the wing is proverbial. All trained birds of this species have two qualifications in a marked degree. The first is speed; the second long and sustained powers of flight. This proposition can be amply demonstrated, and the following are some of the most remarkable records. On the 6th of October, 1850, Sir John Ross despatched a pair of young pigeons from Assistance Bay, a little west of Wellington Sound; and on October 13th a pigeon made its appearance at the dovecote in Ayrshire, Scotland, whence Sir John had the pair he took out. The distance direct between the two places is two thousand miles. An instance is on record of a pigeon flying twenty-three miles in eleven minutes; and another flew from Rouen to Ghent, one hundred and fifty miles, in an hour and a half. An interesting incident of flight is the case of a pigeon which, in 1845, fell wounded and exhausted at Vauxhall Station, then the terminus of the South-Western Railway. It bore a message to the effect that it was one of three despatched to the Duke of Wellington from Ichaboe Island, two thousand miles away. The message was immediately sent on to his Grace, and by him acknowledged. In a pigeon competition some years ago, the winning bird flew from Ventnor to Manchester, two hundred and eight miles, at the rate of fifty-five miles an hour. As an experiment a trained pigeon was recently dispatched from a northern newspaper office with a request that it might be liberated for its return journey at 9.45 a.m. It reached home at 1.10 p.m. having covered in the meantime one hundred and forty miles, flying at the rate of forty miles an hour. In the north pigeons have long been used to convey messages between country houses and market towns; and in Russia they are now being employed to convey negatives of photographs taken in balloons. The first experiment of the kind was made from the cupola of the Cathedral of Isaac, and the subject photographed was the Winter Palace. The plates were packed in envelopes impenetrable to light, and then tied to the feet of the pigeons, which safely and quickly carried them to the station at Volkovo. Here is another interesting instance of speed and staying power. The pigeons in this case flew from Bordeaux to Manchester, and not only beat all existing records, but flew more than seventy miles further than anything previously attempted by English flyers. The winning bird flew at the rate of eighteen hundred and seventy-nine yards a minute, or over sixty-four miles an hour, and that for a distance of one hundred and forty-two and a half miles. The same club has flown birds distances of six hundred and thirteen, and six hundred and twenty-five miles. These latter, however, were several days in returning, and in their case the only wonder is that they could accomplish the distance at all. The following is still more interesting, as it entailed a race between birds and insects. A pigeon-fancier of Hamme, in Westphalia, made a wager that a dozen bees liberated three miles from their hive would reach it in better time than a dozen pigeons would reach their cot from the same distance. The competitors were given wing at Rhynhern, a village nearly a league from Hamme, and the first bee finished a quarter of a minute in advance of the first pigeon, three other bees reached the goal before the second pigeon, the main body of both detachments finishing almost simultaneously an instant or two later. The bees, too, may be said to have been handicapped in the race, having been rolled in flour before starting for purposes of identification.

The American passenger pigeon compasses the whole Atlantic ocean. The speed of its flight is approximately known; it is able to cover one thousand six hundred miles in twenty-four hours. This, however, is marvellous, when it is seen that, flying at the rate of nearly seventy miles an hour, it takes the bird two days and nights to cross. What must be the nature of the mechanism that can stand such a strain as this? This pigeon is now recognised as a British bird. Several examples have occurred, and whilst some of these were probably "escapes," others doubtless were wild birds. These had perfect plumage, were taken in an exhausted condition, and their crops showed only the slightest traces of food. As is well known, the passenger pigeon is a bird of immense powers of flight, and in its overland journeys often flies at the rate of a mile a minute. Wild birds, however, can only come from America; and this opens up the interesting question as to the possibility of birds crossing the Atlantic without once resting. Naturalists of the present day say that this feat is not only probable, but that it is accomplished by several birds. Mr. Darwin somewhere asserts that one or two of them are annually blown across the ocean; and it is certain that half-a-dozen species have occurred upon the west coasts of England and Ireland, which are found nowhere but in North America. Mr. Howard Saunders states that passenger pigeons are often captured in the State of New York with their crops still filled with the undigested grains of rice that must have been taken in the distant fields of Georgia and South Carolina; apparently proving that they passed over the intervening space within a few hours. It certainly seems remarkable that a bird should have the power of winging its way over four thousand miles of sea; but recently two persons have recorded the fact that they have noticed pigeons settle upon the water to drink, then rise from it with apparent ease. And Mr. Darwin says that, where the banks of the Nile are perpendicular, whole flocks of pigeons have been seen to settle on the water and drink while they floated down the stream. He adds that, seen from a distance, they resemble flocks of gulls on the surface of the sea. The passenger pigeon is one of the handsomest of its kind. The accounts of its migrations in search of food are known to all. It is said to move in such vast flocks as to darken the earth as they pass over, and that one of these columns brings devastation wherever it comes.

In the Anglo-Belgian pigeon races, some of the birds attain to nearly a mile a minute, and this when the race is for five hundred miles. The English, French, and Germans all rear pigeons in their fortresses; and the birds are utilised by the Trinity House in conveying messages from the lightships. They are also in use on the Indian stations. The following are additional remarkable instances of quick and long sustained powers of flight which show what the pigeon is capable of doing. Thirty-three birds were recently brought from Termonde, in Belgium, and were liberated at Sunderland at 5 a.m. A telegram received at the latter place stated that sixteen of the birds reached home at 1.35 the same afternoon, having accomplished the distance of four hundred and eighty miles in about eight and a half hours, or about fifty-six miles an hour. A week previous the same birds had flown from London to Brussels.

It has frequently been suggested that homing pigeons should be used to carry telegraphic messages between country houses and post offices. In many cases pigeons have been used as telegraphic messengers with the most successful results. Sending into town, by the people of the Hall is a frequent occurrence, and whenever a messenger had occasion to go, some pigeons, bred at the Hall are sent in a hamper by the dog-cart or what-not. These are taken possession of by a local tradesman living near the post office, who also receives the telegrams. The latter are rolled up and tied either round the bird's leg, or so that it lies across the upper part of its breast. The pigeon is then liberated, and in about ten minutes from the time of despatch the telegram is delivered at the Hall, five miles distant. The reverse process is repeated with the tradesman's pigeons kept at the Hall if a reply to the telegram is required. The platform leading into the pigeon-house is connected with an electric bell that rings when the pigeon, reaching home, alights on the platform, and thus notifies the servants the arrival of a telegram; one of them then goes and unties it from the bird's neck. Much saving in porterage is thus accomplished; the telegrams are delivered in a few minutes, and rarely, if ever, lost. The ordinary homing pigeon is best adapted for the purpose, being an inexpensive purchase. In proof of this fitness the following most remarkable incident may be recorded. A number of English homers were recently sent to Lassay, an inland town of France, but for some reason the French police authorities refused to start them, and the birds were relegated to Cherbourg, where they were liberated at 7 a.m. One of them was seen to alight on the roof of its loft at 11.30 the same forenoon. It had accomplished the entire distance of about three hundred miles, including one hundred miles of water, in a bee-line from Cherbourg to Birkenhead at the rate of over a mile a minute. This particular bird had never been any great distance from home, and although English bred it was from a famous strain of Belgian "homers." The large provincial towns in the north of England are the great centres of pigeon-flying. Recently as many as two thousand five hundred birds were liberated at a flight. Every one of these pigeons were out of sight in one minute from the time they were thrown up, a fact which shows how strong is the "homing" instinct within them. The homing pigeon may not supersede the telegraph; but in disturbed times it is the business of an enemy to cut the wires, to tap them, or even to send misleading despatches along them. No such danger need be apprehended from a carrier pigeon, for, if well trained, it will fly straight from loft to loft, never parting with its tiny scroll unless killed or taken—a mishap which is not likely to befall more than one or two of a flight. As already stated, some remarkable results have already been achieved, not only by Government birds—whose performances and proceedings are, of course, kept secret—but by those belonging to the numerous carrier-pigeon societies which have been established on the Continent either for mere amusement or with more patriotic objects in view. Thus, some years ago, a homing pigeon covered the six hundred and fifteen miles—air-line—between Liége, in Belgium, and San Sebastian, in Spain, in the course of a single day; and in the United States as much as five hundred miles has been traversed in from twenty-four to twenty-eight hours—that is, the birds were absent from loft to loft for that period. But, as the progress of the pigeon from one station to another cannot be accurately followed, it may have halted on the way. The bird is believed to travel the first day without stopping, and being stiff and sore, to rest the second day, resuming its journey on the third, since it is seldom that "a return" comes back travel-stained or weary.

When the rearing and training of carrier-pigeons for French military service was seriously undertaken, the first thing to be done was to find a breed of birds at once intelligent, hardy, strong, light on the wing, and of a dull, uniform colour, likely to escape notice and pursuit. All these attributes are possessed by the Belgian breed, which is divided into two classes; the large, heavy Antwerp, and the smaller, lighter Luttrich variety. The scientific training, which must be begun early, is as follows: As soon as the young pigeons can fly they are taken out of the pigeon-house, put into a basket, and carried (always with the flying-hole of the basket kept carefully turned towards the pigeon-house), to an unknown spot at a short distance, where they are set free and let fly home. It is seldom that a pigeon fails, in the first short trial, to find its way back to its paternal nest. At each trial the distance is slightly lengthened. Pigeons six months old are liberated at a distance of eighty kilometres from home, those of a year old at one hundred and fifty kilometres, those of two years at three hundred kilometres, and older tried birds at six hundred to eight hundred kilometres. These, of course, are average measurements, and are varied according to circumstance. The percentage of losses naturally increases with increasing distance. In long flights the birds meet with innumerable hindrances; rain, hail, fog, wind, and thunderstorms not only impede their flight, but often affect their wonderful sense of locality and direction. The birds are remarkably sensitive to electricity, so that thunderstorms are peculiarly baffling to them, and large forests, great extents of water, and ranges of mountains influence and alter the upper air currents, by the direction of which the pigeons, taught by some marvellous "instinct," are able to steer their course. The average speed of a pigeon is reckoned at a kilometre a minute, and on this basis, and taking into consideration the time of year, length of daylight, weather, &c., calculations are made of the distance a pigeon can be sent. In summer, when daylight begins at half-past three in the morning and lasts till half-past eight at night, a trained pigeon can fly about one thousand kilometres in a day, while on a foggy November day, when the daylight begins late and darkness comes on early, the same bird cannot accomplish more than four hundred kilometres. One great drawback hitherto attendant on the use of pigeons has been the supposed impossibility of making them fly backwards and forwards between two points; they would only fly in one direction. Now, however, Captain Malogoli, the head of the Italian military carrier pigeon depôts, has, after immense and unwearying trouble, succeeded in getting his pigeons to fly backwards and forwards between Rome and Civita Vecchia (seventy-two kilometres). This practical success has shattered the theories of various ornithologists, as Russ, who have affirmed that pigeons cannot be made to fly in two directions. The chief points to be observed in the rearing of pigeons are—roomy, warm houses, facing toward the sun; scrupulous cleanliness, light food, and abundance of clean, fresh water. The smaller the bird, and the quieter its colour, the better chance it stands of safety from human and other enemies; among the latter the falcon is the most dangerous. The military pigeon-post is best organised in Germany, Italy, and France. In the last French budget a sum of sixty-eight thousand francs was devoted to this branch of the service, and there are at present in France twenty-two sub-depôts, besides the chief pigeon station. In Italy there are twelve sub-depôts, and five in the Italian possessions in Africa.

The following are the regulations as to training and flying in connection with the messenger war pigeons in Italy. The posts of Digdegha, the wells of Tata, as well as the detachments sent out to reconnoitre towards Ailet, Assur, &c., send their reports by means of pigeons from the dovecote installed at Massowa, whence they are forwarded to the headquarters at Saati. On rainy days, and when the communications are confidential, the despatches are introduced into goose-quills and sealed; but as this operation, above all when the troops are on the march, entails a certain loss of time, they must only, when possible, write a despatch on a leaf of a pocket-book with which every officer and non-commissioned officer is provided; the despatch is then tied to a tail-feather of the bird. Conventional signs are also used in the case of a detachment being surprised by the enemy and not having time to send a telegram. For instance, when one or more pigeons arrive at the dovecote without despatches, and with the loss of some tail feathers, it is a sign that the troops have been attacked. Sometimes marks made with colour supply such-and-such information. Each detachment carries three or four pigeons in a light basket of bamboo and net. The distances being short, each despatch is sent by one pigeon. A first despatch is sent at the hour fixed in advance by the commander, the others successively as there is news to transmit. The pigeon-basket is borne by soldiers, who relieve one another at stated intervals. The grains of wheat and vessels of water are confided to a corporal, who has the care of the pigeons. When the detachment has to remain absent more than a day, they take with them four pigeons, with wheat and water in a leathern case. If they have to return in a day, they carry but three pigeons, with the food and drink necessary. The frequent arrival of these birds from all quarters presents a curious appearance. When they arrive they perch at the window of the dovecot, where their mates and young await them. To enter they must pass through a sort of cage-trap, which does not permit them to return, and at the same time separates them from the other pigeons. The weight of the newcomer sets an electric bell ringing; and this signal continues all the time the bird remains in the trap; thus giving notice to the sergeant of the guard, who takes the despatch and forwards it to headquarters.

The liability of so defenceless a bird as the pigeon to attack has led to experiments being undertaken from time to time with young ravens, which make fairly quick and reliable messengers up to a distance of about fifty miles. As the raven is very teachable (it can be made to "retrieve" most creditably), and as it manifests a strong attachment to its birth-place, there seems no reason why its training should not be further extended in the new direction, for which its great spirit and endurance appear eminently to fit it.

Here I have only touched upon the speed and power of flight, but the whole subject is one of the most fascinating branches of natural history. No reference has been made to the marvellous movements of birds in the air, which constitute the very poetry of motion—the stationary balancing, hovering, circling, and gliding, all of which may be observed, especially among our own birds of prey.

Although much is known of the speed of birds and animals, there are but few ascertained facts concerning that of insects and fishes. The comparatively low intelligence of these two classes of animals makes it difficult to direct them. They rarely fly or swim in anything approaching to a straight line, and experiments give only approximate results. Pike in pursuit of their prey seem to flash through the water; and salmon and trout move almost as quickly. The Spanish mackerel, with its smooth, cone-shaped body, is among the swiftest of fishes, and for speed only finds a parallel in the dolphin. There is a great similarity in shape between these two, and both cut the water like a yacht. The first follows the fastest steamers with the greatest ease, in its dashes swimming at five times their speed. The bonito is also a fast swimmer; and all those fishes "trimmed" in like fashion with him.

There is one insect to which attention may be drawn, as affording a most striking example of speed among lowly-winged creatures. That is the dragon-fly. I have frequently had an opportunity of dropping into company with the largest species (Libellula grandis), in its aerial excursions in autumn by a particular roadside, along which there was a rushy-margined pool. At such times the writer has been occasionally on foot,—more frequently driving. On foot one has scarcely any means of judging of its speed, for in a moment it is past and gone out of sight. But what is the experience when you are driving, say at ten or twelve miles an hour? This rapid voyager passes over, proceeds beyond you almost out of sight, then turns, swerving widely from right to left, repasses again in both directions, traversing repeatedly the ground, while you are travelling, or rather dragging, over the same space of about a mile only once. We are apt to exaggerate in these matters, but with every allowance, having compared the flight of a dragon-fly with that of a passing hawk, swallow, or cuckoo, I have computed that this large species is capable of flying at a speed of from eighty to one hundred miles an hour—an enormous draw upon the creature's nerves and muscular powers, as manifested by occasional rests of a few minutes upon a bush or a piece of sedge, its habits not requiring uninterrupted flight at such a pace. Perhaps the need of these occasional rests is an erroneous opinion founded upon too limited an area of observation. For Cuvier has stated that M. Poey, who had particularly studied the insects of Cuba, informed him that at certain seasons of the year the northerly winds bring to the city of Havannah and its neighbourhood an innumerable quantity of specimens of one of the species of Libellulæ. Other instances of the periodical flights or migrations of dragon-flies have been noted by observers. And even butterflies have been seen to migrate to distant points of land, making flights of fifty or sixty miles across water. These long journeys may be relieved by occasional rests, as Mr. Newman and others have ascertained that lepidopterous insects are able to alight upon the water, rest awhile, and then rise with apparent ease—a fact readily credited by fishermen, who so frequently see the green-and-grey drake and other ephemeræ float down stream, and, if not taken by the trout, suddenly spring up again, and resume their aerial dances. But this power of rapid movement in the dragonfly, be the rate more or less, is in just keeping with its structure. The insect's body is slender, the chest strongly developed, though firm; the wings, four in number, are narrow, of great length, and consist of fine, thin, dry membrane, stretched upon a series of lightly made costæ, or rafters. No wonder, then, that with such a mechanism the creature pursues its prey of smaller insects with such rapidity.