As we return homeward, we soon find ourselves surrounded by the familiar birds that shun the forest and assemble around the habitations of men. Among them the Blue-Bird meets our sight, upon the roofs and fences as well as in the field and orchard. At the risk of introducing him into a company to which he does not strictly belong, I will attempt in this place to describe some of his habits. The Blue-Bird (Sylvia sialis) arrives very early in spring, and is detained late in the autumn by his habit of raising two or more broods of young in the season. He is said to bear a strong resemblance to the English Robin-Redbreast, being similar in form and size, each having a red breast and short tail-feathers, with only this manifest difference, that one is olive-colored above where the other is blue. But the Blue-Bird does not equal the Redbreast as a songster. His notes are few, not greatly varied, though melodious and sweetly and plaintively modulated, and never loud. On account of their want of variety, they do not enchain a listener, but they constitute a delightful part in the woodland melodies of morn.

The importance of the inferior singers in making up a general chorus is not always appreciated. In an artificial musical composition, as in an oratorio or an anthem, though there is a leading part, which is commonly the air, that gives character to the whole, yet this principal part would often be a very indifferent piece of melody, if performed without its accompaniments. These accompaniments by themselves would seem still more unimportant and trifling. Yet if the composition be the work of a master, however trifling and comparatively insignificant these brief strains or snatches, they are intimately connected with the harmony of the piece, and could not be omitted without a serious derangement of the grand effect. The inferior singing-birds, on the same principle, are indispensable as aids in giving additional effect to the notes of the chief singers.

Though the Robin is the principal musician in the general orison of dawn, his notes would become tiresome, if heard without accompaniments. Nature has so arranged the harmony of this chorus, that one part shall assist another; and so exquisitely has she combined all the different voices, that the silence of any one can never fail to be immediately perceived. The low, mellow warble of the Blue-Bird seems a sort of echo to the louder voice of the Robin; and the incessant trilling or running accompaniment of the Hair-Bird, the twittering of the Swallow, and the loud and melodious piping of the Oriole, frequent and short, are sounded like the different parts of a regular band of instruments, and each performer seems to time his part as if by design. Any discordant sound, that may happen to be made in the midst of this performance, never fails to disturb the equanimity of the singers, and some minutes must elapse before they recommence their parts.

It would be difficult to draw a correct comparison between the different birds and the various instruments in an orchestra. It would be more easy to signify them by notes on the gamut. But if the Robin were supposed to represent the German flute, the Blue-Bird might be considered as the flageolet, frequently, but not incessantly, interposing a few mellow strains, the Swallow and the Hair-Bird the octave flute, and the Golden Robin the bugle, sounding occasionally a low but brief strain. The analogy could not be carried farther without losing force and correctness.

All the notes of the Blue-Bird—his call-notes, his notes of alarm, his chirp, and his song—are equally plaintive, and closely resemble each other. I am not aware that this bird ever utters a harsh note. His voice, which is one of the earliest to be heard in the spring, is associated with the early flowers and with all pleasant vernal influences. When he first arrives, he perches upon the roof of a barn or upon some still leafless tree, and pours forth his few and frequent notes with evident fervor, as if conscious of the delights that await him. These mellow notes are all the sounds he titters for several weeks, seldom chirping, crying, or scolding like other birds. His song is discontinued in the latter part of summer; but his peculiar plaintive call, consisting of a single note pensively modulated, continues all day, until the time of frost. This sound is one of the melodies of summer's decline, and reminds us, like the notes of the green nocturnal grasshopper, of the fall of the leaf, the ripened harvest, and all the melancholy pleasures of autumn.

The Blue-Bird builds his nest in hollow trees and posts, and may be encouraged to breed and multiply around our habitations, by erecting boxes for his accommodation. In whatever vicinity we may reside, whether in the clearing or in the heart of the village, if we set up a little bird-house in May, it will certainly be occupied by a Blue-Bird, unless preoccupied by a bird of some other species. There is commonly so great a demand for such accommodations among the feathered tribes, that it is not unusual to see birds of several different species contending for the possession of one box.

After the middle of August, as a new race of winged creatures awake into life, the birds, who sing of the seed-time, the flowers, and of the early summer harvests, give place to the inferior band of insect-musicians. The reed and the pipe are laid aside, and myriads of little performers have taken up the harp and the lute, and make the air resound with the clash and din of their various instruments. An anthem of rejoicing swells up from myriads of unseen harpists, who heed not the fate that awaits them, but make themselves merry in every place that is visited by sunshine or the south-wind. The golden-rod sways its beautiful nodding plumes in the borders of the fields and by the rustic roadsides; the purple gerardia is bright in the wet meadows, and the scarlet lobelia in the channels of the sunken streamlets. But the birds heed them not; for these are not the wreaths that decorate the halls of their festivities. Since the rose and the lily have faded, they have ceased to be tuneful; some, like the Bobolink, assemble in small companies, and with a melancholy chirp seem to mourn over some sad accident that has befallen them; others still congregate about their usual resorts, and seem almost like strangers in the land.

Nature provides inspiration for every sentiment that contributes to the happiness of man, as she provides sustenance for his various physical wants. But all is not gladness that elevates the soul into bliss; we may be made happy by sentiments that come not from rejoicing, even from objects that waken tender recollections of sorrow. As if Nature designed that the soul of man should find sympathy, in all its healthful moods, from the voices of her creatures, and from the sounds of inanimate objects, she has provided that all seasons should pour into his ear some pleasant intimations of heaven. In autumn, when the harvest-hymn of the day-time has ceased, at early nightfall, the green nocturnal grasshoppers commence their autumnal dirge, and fill the mind with a keen sense of the rapid passing of time. These sounds do not sadden the mind, but deepen the tone of our feelings, and prepare us for a renewal of cheerfulness, by inspiring us with the poetic sentiment of melancholy. This sombre state of the mind soon passes away, effaced by the exhilarating influence of the clear skies and invigorating breezes of autumn, and the inspiriting sounds of myriads of chirping insects that awake with the morning and make all the meadows resound with the shout of their merry voices.

SONG OF THE WOOD-SPARROW.