Part 9

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The firecrest (_Regulus ignicapillus_), which closely resembles the species just described, is an accidental visitor from the continent of Europe.

Chiffchaff.

Phylloscopus rufus.

Upper plumage olive-green tinged with yellow; above the eye a faint yellowish white streak; under parts yellowish white; feathers of the leg greyish white. Length, four inches and three-quarters.

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The chiffchaff, although his song is so simple--the simplest song of all--and after a time is apt to become wearisome from incessant repetition, is, nevertheless, one of the most welcome visitors of the early spring; for this small bird, in spite of its smallness and frailty, is the first of the migratory warblers to make its appearance on our coasts. Shortly after the middle of March, and even earlier in some years, the well-remembered, familiar sound, full of promise of the beautiful budding season, begins to be heard here and there in the more sheltered and sunny spots in woods and copses, and by the first week in April it is one of the most familiar sounds in the country. It is not, however, so general as the strain of the willow-wren, this species being more local in its distribution.

It is this early appearance of the chiffchaff, coming ‘before the swallow dares,’ that endears it to the lover of Nature and of bird life. Mr. Warde Fowler, in his ‘Year with the Birds,’ has well expressed the feeling which so many have for this small warbler. ‘No one,’ he says, ‘who hails the approach of spring as the real beginning of a new life for men and plants and animals, can fail to be grateful to this little brown bird for putting on it the stamp and sanction of his clear, resonant voice. We grow tired of his two notes--he never gets beyond two--for he sings almost the whole summer through; ... but not even the first twitter of the swallow, or the earliest song of the nightingale, has the same hopeful story to tell me as this delicate traveller who dares the east wind and the frost.’

The two notes, which vary as slightly in tone as two taps of a hammer on an anvil delivered with equal force on the same spot, are emitted with great vigour and spirit, as if the little creature’s whole heart was in the performance, and repeated several times without a pause. This is the whole song, and, when not engaged in uttering it, the singer is incessantly moving about in pursuit of small insects and their larvæ, now searching for them in the small twigs and buds, after the manner of the titmice, and at times capturing them on the wing. Meanwhile the song is repeated at frequent intervals from morning until dark. It is not suspended, as in the case of most of the warblers, after the young have been hatched, but continues throughout the summer and autumn, when it degenerates somewhat in character, the sound losing the little musical quality it originally possessed.

The nest is made in the ground, a hedgebank being the situation preferred, and is round and domed, with an opening at the side. Dry grass, leaves, and moss are the materials used in its construction, the cavity being plentifully lined with feathers. The eggs are six, pure white, spotted and speckled with brown and brownish purple.

Willow-Wren.

Phylloscopus trochilus.

Upper plumage bright olive-green; a narrow streak of yellow over the eye; under parts yellowish white, palest in the middle; feathers of the legs yellow. Length, nearly five inches.

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The willow-wren, or willow-warbler, is one of the earliest of our summer songsters to arrive, usually following the chiffchaff--which it resembles in size and general appearance--by a few days. During the last week of March, if the weather be not too cold, its delicate strain may be heard in sheltered situations in the southern parts of England, and by the second week in April it is one of the most frequently heard songs throughout the length and breadth of the land. Not only is this species very much more generally diffused than its two nearest relations--the chiffchaff and wood-wren--but it is met with in a much greater variety of situations--on commons, in hedgerows, gardens, woods, and plantations. Yet, in spite of its abundance and wide distribution, it is nowhere a familiar bird to the country people; the small, delicate voice does not compel attention and is well-nigh lost in the summer concert that has so many loud, jubilant strains in it.

The willow-wren is a pretty little bird, although without any bright colour in its plumage, which at a short distance looks of a soft greenish yellow tint. He is best seen when the trees are opening their buds, before the thickening foliage hides his tiny, restless, flitting form from sight. He is the least shy of the warblers, his trustfulness being in strong contrast to the suspicious manner and love of concealment of the blackcap and whitethroat. He will unconcernedly continue his hunt for minute insects, and utter his melody at intervals, within a few feet of a person, sitting or standing, quietly observing him. The song, although a small one, both as to duration and power, has a singular charm: not merely the charm of association experienced in a voice long absent and heard once more--a voice of the spring, that comes before the loud call of the cuckoo and the familiar, joyous twitter of the swallow; it is in itself a beautiful sound, one of the sweetest bird-songs heard in our country. ‘A song which is unique among British birds,’ says Mr. Warde Fowler, whose description of it is, perhaps, the most perfect which we have. ‘Beginning with a high and tolerably full note, he drops it both in force and pitch in a cadence short and sweet, as though he were getting exhausted with the effort.... This cadence is often perfect; by which I mean that it descends gradually, not, of course, on the notes of our musical scale, ... but through fractions of one, or perhaps two, of our tones, and without returning upward at the end; but still more often, and especially, as I fancy, after they have been here a few weeks, they take to finishing with a note nearly as high in pitch as that with which they began.’

After this it is interesting to read Mr. J. Burroughs’s impressions of the willow-wren’s song. He writes: ‘The most melodious strain I heard, and the only one that exhibited to the full the best qualities of the American songsters, proceeded from a bird quite unknown to fame--in the British Islands, at least. I refer to the willow-warbler.... White says it has a “sweet, plaintive note,” which is but half the truth. It has a long, tender, delicious warble, not wanting in strength and volume, but eminently pure and sweet--the song of the chaffinch refined and idealised.... The song is, perhaps, in the minor key, feminine and not masculine, but it touches the heart.

‘That strain again; it had a dying fall.’

‘The song of the willow-warbler has a dying fall; no other bird-song is so touching in this respect. It mounts up round and full, then runs down the scale, and expires upon the air in a gentle murmur.’

The willow-wren breeds early, making a circular domed nest on the ground, among the long grass and weeds, under a hedge or beneath a bramble bush on a bank, and occasionally at a distance from sheltering bushes in the grass of a field. It is made of dry grass, and lined with rootlets and horsehair, and, lastly, with feathers. The eggs are six or seven in number, pure white, the yolk showing through the frail shell, and giving it a faint yellow tinge; they are blotched and spotted with reddish brown. When the nest is approached the parent birds display the greatest anxiety, hopping and flitting about close to the intruder, and uttering low, plaintive notes.

The willow-wren stays longer with us than any migratory warbler except the chiffchaff, and its song is, without exception, the most persistent. From the time of its arrival in March, or early in April, it sings without ceasing until July; then for a few weeks its song is heard only in the early morning, and it ceases at the end of August, during the moult, but is renewed a little later, and is then continued until the bird’s departure at the end of September.

Wood-Wren.

Phylloscopus sibilatrix.

Upper plumage olive-green tinged with sulphur-yellow; a broad streak of sulphur-yellow over the eye; sides of head, throat, and insertion of the wings and throat bright yellow; rest of under plumage pure white. Length, nearly six inches.

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This warbler arrives in England at the end of April, being later by many days than its two nearest relations, the chiffchaff and willow-wren. As its name implies, it is a bird of the woods, with a preference for such as are composed wholly or in part of oak and beech trees. It is not easily discerned, on account of its restless disposition; also because it chiefly frequents the uppermost parts of the trees it inhabits. Its instinct appears to be to live and hunt for the small insects it preys on among the green leaves at the greatest possible height from the earth; this may account for its love of the beech, which is the tallest of our forest trees. But if difficult to see as it flits lightly from place to place among the higher foliage, it is easy to hear, and its frequently uttered song sounds very loud in the woodland silence, and is strangely unlike that of any other songster. It may be said to possess two distinct songs: of these, the most frequently uttered and unmistakable begins with notes clear, sweet, and distinct, but following more and more rapidly until they run together in a resonant trill, and finally end in a long, tremulous note, somewhat thin and reedy in sound. At longer intervals it utters its other song, or call, a loud, clear note, slightly modulated, and somewhat plaintive, repeated without variation three or four times.

The wood-wren, although so great a lover of the tall tree-tops, breeds on the ground, like the two species described before it, and, like them, builds an oval-shaped domed nest. It is placed among the herbage, and is composed of moss, dry leaves, and grasses, lined with fine grass and horsehair. Feathers are never used in the nest-lining, and in this the wood-wren differs from the two preceding species. Six eggs are laid, transparent white, spotted and speckled with dark brown, purple and grey.

The wood-wren differs from most of the warblers in being exclusively an insect-eater.

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A fourth member of this genus, the yellow-browed warbler (_Phylloscopus superciliosus_), which breeds in Northern Siberia, has been met with as a rare straggler in this country.

Two more warblers, belonging to different genera, must be mentioned here as stragglers to England: the icterine warbler (_Hypolaïs icterina_) and the rufous warbler (_Aëdon galectodes_).

Reed-Warbler.

Acrocephalus streperus.

Upper plumage uniform reddish brown, without spots; a white streak or spot between the eye and bill; throat white; under plumage very pale buff. Length, five and a half inches.

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The reed-warbler closely resembles the sedge-warbler, next to be described, in size, colouring, and general appearance, also in language and habits; but is a much less common species, more local in its distribution, and is, consequently, not nearly so well known. He arrives in this country about the middle of April, and inhabits dense reed-beds in dykes, marshes, and the borders of rivers, where he skulks, for the most part out of sight; but his loquacity betrays his presence, for he is a persistent singer, especially in the early part of the day, and again in the evening. His song resembles that of the sedge-warbler in its curious mingling of musical and harsh notes, its hurried and somewhat angry scolding character, but is less powerful, the harsh notes less harsh and vigorous--a sweeter but not so interesting a performance. Like the nearly allied species, he bursts into singing when excited by fear or solicitude for the safety of his nest. He is an exceedingly restless little creature, incessantly hopping from stem to stem, now mounting to the surface of the reeds, and almost instantly dropping into concealment again. Even where the birds are many, it is only by patient waiting and watching that an occasional glimpse of one can be got. His food consists of small insects, caught on the wing and on the leaves and stems of the reeds and aquatic herbage. The nest is a deep, beautiful structure, suspended on two or three, or more, slender reed-stems, or on the twigs of a willow, osier, or other plant growing near the water. It is made of long dry grass-leaves woven together, with finer grass-leaves and horsehair for a lining. The eggs are four or five in number, greenish white in colour, clouded, blotched, and freckled with dark olive and ash-grey.

Sedge-Warbler.

Acrocephalus phragmitis.

Upper plumage greyish brown; above the eye a broad, distinct, yellowish white streak; under plumage pale buff; throat white. Length, four inches and three-quarters.

[Illustration: FIG. 30.--SEDGE-WARBLER. ⅓ natural size.]

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The sedge-warbler, usually called sedge-bird, and in some localities river-chat, is a common species in most waterside places where there are reed-beds and willows; it also frequents rough hedges and bramble and furze bushes in the neighbourhood of a watercourse. Sometimes, but not often, it is found breeding at a considerable distance from a stream. It comes to us in April, and is a most active and lively little creature. Although not shy of man, it is less easy to observe than any other species in this group, except, perhaps, the grasshopper warbler, on account of its excessive restlessness, the rapidity of its movements, and its habit of keeping near the surface in the close reeds and bushes it lives in. The grasshopper warbler, and, indeed, most small birds that inhabit bushes, love to come to the surface to sing; the sedge-warbler sings much as he hurries about in search of his food, which consists of small caterpillars and slugs, and aquatic insects. Occasionally the restless little yellowish brown figure appears for a moment or two near the top of a bush, and then vanishes again.

The song is curious, and delivered in a curious manner, with hurry and vehemence; and this, as well as the character of the sounds emitted, gives the idea that the bird is excited to anger--that he is scolding at, rather than singing to, the listener. The opening note, hurriedly repeated several times, and recurring at short intervals as long as the song lasts (its keynote and refrain), resembles the chiding note of the whitethroat when its nest is approached, but is louder and more strident. It is the loudest sound the sedge-warbler emits, and when the song is heard at a distance of fifty or sixty yards it seems all composed of chiding notes. But on a nearer approach--and the bird will allow the listener to get quite close to it--the performance is found to be a very varied one. Listening to it, one finds it hard not to believe that this warbler possesses the faculty it has often been credited with, of mocking other species. But if he indeed has such a talent, he reproduces not so much the songs of other birds as the notes and chirps and small cries of anxiety and alarm--the various sounds emitted by singing-birds in the presence of danger to their young or incubated eggs. Thus, in the medley of hurried and strongly contrasted sounds that come in a continuous stream from the sedge-warbler one seems to recognise the low girding of the nightingale, and the different notes of solicitude of the sparrow, reed-bunting, and chaffinch, of the wren and the willow-wren, the meadow-pipit and pied wagtail. But whether these various sounds are really borrowed or not one can never feel sure.

The sedge-warbler is a very persistent singer. Some birds are too chary of their strains; but of this waterside music any person may have as much as he likes in May and June. Singing is apparently as little tiring to this bird as rushing through the air is to the swift. At the season of his greatest vigour he appears to pour out his rapid notes almost automatically; and when silent, a stone or stick flung into his haunts will provoke a fresh outburst of melody. He also sings a great deal at night in the love season.

The sedge-warbler makes its nest among the tangled vegetation at the waterside; as a rule it is placed near the ground, and is composed outwardly of moss, leaves, and aquatic grasses, and lined with fine grass and hair. The eggs are five, of a dirty white or pale brownish ground-colour, with yellowish brown spots, sometimes with hair-like marks among the spots.

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Besides the two described, three more species of this group of warblers have been numbered as British birds, having been found as stragglers in this country. These are the marsh-warbler (_Acrocephalus palustris_), the great reed-warbler (_Acrocephalus turdoïdes_), and the aquatic warbler (_Acrocephalus aquaticus_).

Grasshopper Warbler.

Locustella nævia.

Upper parts light greenish brown; the middle of each feather, being darker, gives a mottled appearance; under parts very pale brown, spotted with darker brown on neck and breast; feet light brown. Length, five and a half inches. _Female_ without the brown spots on the breast.

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This warbler arrives in our country about the middle of April, sometimes a week, or even a fortnight, earlier. In the melodious family to which it belongs it is distinguished by the singularity of its voice, which has no musical, or song-like, or even bird-like quality in it, but is like the sound produced by some stridulating insects. It is to be found in suitable situations throughout England and Wales, and in many parts of Scotland and Ireland. It frequents both dry and marshy ground where dense masses of vegetation afford it the close cover which would seem necessary to its frail existence; thus it is found in reed-beds growing in the water, and in hedges and thorny thickets, and among the furze-bushes on open commons. Although thus widely distributed in the British Islands, it is, like the nightingale, very local, and reappears faithfully each spring at the same spot. How strong the attachment to place, or home, is in this species will be seen in the following fact: Having found a small colony of about half a dozen grasshopper warblers inhabiting a circumscribed spot in the middle of an extensive common, I went back to the place in three consecutive summers, and each time found the birds in the same bushes. Yet the dozen or twenty furze and bramble bushes which they inhabited were in no way, that one could see, better suited to their requirements than hundreds of other bushes of the same description scattered over the surrounding land. Nor were any other individuals of the species to be found in the neighbourhood, except one pair, which were always to be met with in some brambles about a quarter of a mile from the spot inhabited by the other birds. Such a fact appears to show that, not only do the old birds return year after year to the same breeding-place, but that the young also come back to the spot where they were hatched; also, it appears to show that in this frail and far-travelling species the annual increase is only sufficient to make good the losses from all natural causes.

Immediately after their arrival in April the males begin their curious vocal performance, at first with a feeble and broken strain; but in a little while the voice gains in strength and shrillness, and the utterance becomes more sustained, lasting sometimes without a break for thirty or forty seconds, and even longer. This is renewed again and again at short intervals throughout the day, and continued far into the night. Indeed, the song may be heard all night long in fine summer weather. The sound is recognised by few of those who hear it as coming from a bird. It is usually attributed to an insect, and if the hearer grows curious, and tries to find the exact spot from which it issues, he finds this a somewhat difficult task. The sound seems now on this side, now on that, now far away, and anon close at hand; it is here, there, and everywhere. A good plan is to put the open hands behind the ear, then to turn slowly round until the exact spot is discovered. When the bush from which it proceeds has been found, the listener should advance cautiously to within a few yards of it, and sit down and wait until the hidden bird, recovering from his alarm, comes up to the summit and resumes his singing. It is then most interesting to observe him. The bird sits motionless, turning its head from side to side, and so long as the strain continues the yellow mouth is wide open, like the gaping mouth of a fledgeling waiting to receive food, the slender body trembling with the sound, as if an electric current were passing through it. The sound produced has been compared by different writers to the song of a grasshopper, only more sustained; to the cicada; to the whirring of a wool-spinner’s reel, and to that of a well-oiled fisherman’s reel made to run at a very rapid rate; and, finally, to the sharp, vibrating sound of the rattlesnake, and to an electric bell; but it is not so sharp as these last two.

The grasshopper warbler builds on the ground, and so well concealed is the nest that it is only possible to find it by watching the birds when carrying nesting materials into the bush. The nest is formed of dry grass and moss, and lined with fine fibres. Five to seven eggs are laid, white or pale pink, spotted with reddish brown over the entire egg; and sometimes fine hair-like lines are mixed with the spots.

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A small warbler, closely resembling the grasshopper warbler in its language and habits, and once an indigenous British species, is _Locustella luscinioïdes_, locally known as the reelbird, red night-reeler, and red craking night-wren, and in books as Savi’s warbler, after its discoverer. It bred regularly in the Norfolk Broads and the fen districts in Lincolnshire down to about 1849, when it became extinct.

Hedge-Sparrow.

Accentor modularis.

[Illustration: FIG. 31.--HEDGE-SPARROW. ⅓ natural size.]

Crown ash-colour with brown streaks; side of neck, throat, and breast bluish grey; back and wings reddish brown streaked with dark brown; breast and belly buffy white. Length, five and a half inches.

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