Among the Birds in Northern Shires. Charles Dixon

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СКАЧАТЬ hundreds of birds, on the very day of their appearance in the Rivelin Valley. These flocks soon disband; in a day or so they break up, and the birds scatter themselves in pairs over all the suitable breeding-places. The cock bird is not only a handsome one, but very distinctively marked, easily recognized as far as the eye can reach by his pure white gorget; otherwise he very closely resembles the Blackbird in general appearance. The resemblance does not end here, though, and in its habits and movements generally, as well as in the nest and eggs, we have an equal similarity.

      

      Whilst in flocks the birds are wary and wild enough, but when breeding they become bold and venturesome to an astonishing degree—in these respects exactly resembling their ally, the Missel-thrush. We remark this Ouzel’s habit of elevating the tail after alighting, just as the Blackbird does; we also cannot fail to notice its exceeding noisiness just prior to seeking a roosting-place; neither shall we fail to observe its very Blackbird-like way of feeding, ever alert and watchful. Soon after their arrival, but never, so far as we have observed, before the flocks or travelling parties have disbanded, the cock birds regain their vernal music characteristic of the love season. With the resumption of song the bird loses a good deal of its wariness, a fact we may notice in not a few other species. He will sit and warble on the big boulders of granite or millstone grit, or when perched on the top of a rough wall or some bending spray of ling or gorse, just as sweetly as when sitting in the higher branches of some birch or mountain-ash. His music is not of that rich excellence that marks the song of the Blackbird, nor has it the variety so characteristic of the Thrush; yet there is a wild beauty in harmony with the surrounding scene that makes ample recompense for its failings in other ways. Unfortunately the bird continually spoils his music by introducing a series of inharmonious harsh notes. Like that of the Blackbird the song is all too short, and even lacks the redeeming feature of continuous flute-like melody, short as it is, that saves the Blackbird’s from being classed as commonplace. To our mind, the Ring-ouzel always increased in interest during the breeding season. Many scores of nests of this bird have we kept under observation, not a few of them from the time the first twig was laid until the four or five nestlings left them for ever. The birds are much attached to certain spots, and return to nest in them with wonderful pertinacity. Then, again, how often have we remarked their absurd attachment to a nest in the course of building. We have known Ring-ouzels show more concern for a handful of nest material—by no means a finished nest—than scores of other species display over the absolute loss of a nest and eggs. The Ring-ouzel is the Stormcock of the moor—ready to do battle with much noisy clamour the moment its nest is approached. This nest is not always made amongst the ling and heather; numbers are placed in low bushes on the outskirts of the moor, and on the banks of the streams and by the sides of the roughly-formed cart-tracks, especially where the banks are steep. In early autumn Ring-ouzels again become more or less social and gregarious; they then begin to wander off the moors to the nearest fruit-gardens, and so gradually work south in parties and flocks. Gilbert White, whose pleasure at his discovery of the migrating Ring-ouzels across the Sussex Downs may easily be surmised by the reader of his ever-charming letters, tells us that he used to see these Thrushes—more than a hundred years ago—in little parties about Michaelmas, and again in April, and remarked their tameness. The birds are not so common in that area now; times have changed and many species are gone, for in the same letter (No. VII) he tells us that there are Bustards on the wide downs near Brighthelmstone! Perhaps we might here take the opportunity of mentioning that flocks of Snow Buntings sometimes appear on the Highland moors, but our own experience of this charming arctic stranger relates to more southern shires, and where we hope to meet with it again later on in the present work.

       The Merlin.

The birds of prey that haunt the moors are all more or less migratory in their habits, as might naturally be expected, because the species upon which they depend for food are non-resident too. The Red Grouse, it is true, is sedentary, but no raptorial bird frequents the moors that preys exclusively upon that species, and it chiefly suffers during the breeding season when the young chicks and poults are about. The Merlin is the most deadly enemy of these. It is a spring migrant to the moors, and is not known to breed with certainty south of Wales. It may just possibly do so on Exmoor, but certainly does not on Dartmoor; in fact, to Devonshire it must be regarded as a rare visitor in autumn and winter. We have always found the Merlin to be fairly common throughout the moors of North Derbyshire and South Yorkshire. It is ruthlessly persecuted by the gamekeeper, and its numbers consequently have declined almost to the vanishing point in not a few districts. We never saw much of the Merlin on the moors between Castleton and Sheffield before April. There are many favourite haunts on these moors in which the bird may be found breeding every summer; and curiously enough, although pair after pair may be destroyed, others come and settle in the district the following season. We are glad to be able to record that the bird has not been so severely hunted down in one or two places, and consequently its numbers seem to be on the increase. The spirited dash of this pretty little Falcon is not exceeded by that of the Peregrine itself. Times without number have we witnessed its fatal chase of the smaller birds of the moor—Twites, Ring-ouzels, Meadow Pipits, and less frequently of Plovers, Grouse, and occasionally Cuckoos. In the higher valley of the Rivelin, we once watched an exciting chase by this bird of a Common Sandpiper, which had been flushed from the heath-clad bank of one of the reservoirs at Hollow Meadows. Pursuer and pursued strove their utmost, the Sandpiper doubling, rising, and turning from side to side, and the relentless Merlin following closely every movement as though each bird were guided simultaneously by a common impulse. The chase was continued over the large reservoir, and we had a fine uninterrupted view of each bird’s powers of wing. The Sandpiper, after the water was crossed, gained a brief respite by hiding amongst the rushes on the opposite bank; but the Falcon, undeterred, hovered above the spot and once more flushed its quarry. The poor little Sandpiper wheeled rapidly round and then flew off across a rough bit of rock and heath-strewn ground, but its strength was exhausted; the Merlin’s superior powers of flight and endurance asserted themselves, and the Sandpiper, with a piteous weet weet of terror, was struck down. But the various birds of the moorlands are by no means the Merlin’s only food. Like most, if not all the smaller Falcons, it subsists largely on certain insects. Whether the bird’s good offices in this direction counterbalance its tax upon young Grouse we need not stay here to enquire. Perhaps in this case they do not, for the insects caught can do little or no damage in such localities; but on the other hand, we must remember that the Falcon assists in keeping up the Grouse to a strong and vigorous standard by killing off—if amongst others—a certain percentage of weakly and unfit birds. There is some evidence to show that Grouse disease appears in regular cycles on most moors—say every seven years—and competent observers have attributed it to old birds spreading the contagion. Now, had the larger Raptores not been so ruthlessly exterminated in these localities, surely it is only reasonable to suppose that they would have thinned out many of these birds, not perhaps preventing an epidemic, but thus assisting in rendering it of a milder character than otherwise prevails. Depend upon it, man seldom or never meddles with the delicately-adjusted balance of nature without unfortunate results in some direction. But to return to the Merlin and its economy. Like the Sparrow-hawk and many other raptorial birds, this pretty species selects some spot or spots in its haunts to which it conveys its captures to devour them in peace. The nest is almost invariably made at no great distance from these “dining-tables” or “larders”, where the bare and often rock-strewn ground is sprinkled with feathers, bones, pellets, wing-cases and wings of insects, the remains of the Merlin’s food. These haunts, as previously remarked, are tenanted yearly with wonderful regularity, and the nest each season is made in much the same locality as in previous years. This nest is of the simplest, and always, so far as we know, upon the ground. “Nests” have been recorded in Scotland in the old nest of some other bird in a tree;[2] whilst in some foreign countries a ledge of a cliff is said to be selected. Our experience is that it is invariably upon the ground, and generally on a rather bare spot amongst the heather or ling, often on an eminence of some kind. Here in a slight hollow, with no lining as likely as not, the four or five pretty red eggs of the Merlin are laid. They are absolutely indistinguishable from those of the much commoner Kestrel, but their terrestrial resting-place СКАЧАТЬ