The song of the Wood-Thrush consists of about eight or ten different strains, each of considerable length. After each strain the bird makes a pause of about three or four seconds. I think the effect of this sylvan music is somewhat diminished by the length of the pauses or rests. It may be said, however, that during each pause our susceptibility is increased, and we are thus prepared to be more deeply affected by the next notes. Whether the one or the other opinion be correct, it is certain that any one who stops to listen to this bird will become spellbound, and deaf to almost every other sound in the grove, as if his ears were enchained to the song of the Siren.
The Wood-Thrush sings at almost all hours of the day, though seldom after sunset. He delights in a dusky retreat, and is evidently inspired by solitude, singing no less in gloomy weather than in sunshine. Late in August, when other birds have mostly become silent, he is sometimes the only songster in the wood. There is a liquid sound in his tones that slightly resembles that of a glassichord; though in some parts of the country he has received the name of Fife-Bird, from the clearness of his intonations. By many persons this species is called the Hermit-Thrush.
The Veery (Turdus Wilsonii) has many habits like those of the Wood-Thrush, and some similarity of song. He is about the size of a Blue-Bird, and resembles the Red Thrush, except that the brown of his back is slightly tinged with olive. He arrives early in May, and is first heard to sing during some part of the second week of that month, when the sons of the Bobolink commences. He is not one of our familiar birds; and unless we live in close proximity to a wood that is haunted by a stream, we shall never hear his voice from our doors or windows. He sings neither in the orchard, nor the garden, nor in the suburbs of the city. He shuns the exhibitions of art, and reserves his wild notes for those who frequent the inner sanctuary of the groves. All who have once become familiar with his song await his arrival with impatience, and take note of his silence in midsummer with regret. Until this little bird has arrived, I always feel as an audience do at a concert, before the chief singer has made her appearance, while the other performers are vainly endeavoring to soothe them by their inferior attempts.
This bird is more retiring than any other important singing-bird, except the Wood-Thrush,—being heard only in solitary groves, and usually in the vicinity of a pond or stream. Here, especially after sunset, he pours forth his brilliant and melancholy strains with a peculiar cadence, and fills the whole forest with sound. It seems as if the echoes were delimited with his notes, and took pleasure in passing them round with multiplied reverberations. I am confident this bird refrains from singing when others are the most vocal, from the pleasure he feels in listening either to his own notes, or to the melodious responses which others of his own kindred repeat in different parts of the wood. Hence he chooses the dusk of evening for his vocal hour, when the little chirping birds are mostly silent, that their voices may not interrupt his chant. At this hour, during a period of nine or ten weeks, he charms the evening with his strains, and often prolongs them in still weather till after dusk, and whispers them sweetly into the ear of night.
No bird of his size has more strength of voice; but his song, though loud, is modulated with such a sweet and flowing cadence, that it comes to the ear with all the mellowness of the softest warbling. It would be difficult to describe his song. It seems at first to be wanting in variety. I was long of this opinion, though I was puzzled to account for its pleasing and extraordinary effect on the mind of the listener. The song of the Veery consists of five distinct strains or bars. They might, perhaps, be represented on the musical staff, by commencing the first note on D above the staff and sliding down with a trill to C, one fifth below. The second, third, fourth, and fifth bars are repetitions of the first, except that each commences and ends a few tones lower than the preceding.
Were we to attempt to perform these notes with an instrument adapted to the purpose, we should probably fail, from the difficulty of imitating the peculiar trilling of the notes, and the liquid ventriloquial sounds at the conclusion of each strain. The whole is warbled in such a manner as to produce upon the ear the effect of harmony. It seems as if we heard two or three concordant notes at the same moment. I have never noticed this effect in the song of any other bird. I should judge that it might be produced by the rapid descent from the commencing note of each strain to the last note about a fourth or fifth below, the latter being heard simultaneously with the reverberation of the first note.
Another remarkable quality of the song is a union of brilliancy and plaintiveness. The first effect is produced by the commencing notes of each strain, which are sudden and on a high key; the second, by the graceful chromatic slide to the termination, which is inimitable and exceedingly solemn. I have sometimes thought that a part of the delightful influence of these notes might be attributable to the cloistered situations from which they were delivered. But I have occasionally heard them while the bird was singing from a tree in an open field, when they were equally pleasing and impressive. I am not peculiar in my admiration of this little songster. I have observed that people who are strangers to the woods, and to the notes of birds, are always attracted by the song of the Veery.
In my early days, when I was at school, I boarded in a house near a grove that was vocal with these Thrushes; and it was then I learned to love their song more than any other sound in Nature, and above the finest strains of artificial music. Since that time I have lived in town, apart from their sylvan retreats, which I have visited only during my hours of leisure; but I have seldom failed, each returning year, to make frequent visits to the wood to listen to their notes, which cause full half the pleasure I derive from a summer-evening walk. If in any year I fail to hear the song of the Veery, I feel a painful sense of regret, as when I have missed an opportunity to see an absent friend, during a periodical visit.
The Veery is not one of our latest singers. His notes are not often heard after the middle of July.
We should not be obliged to penetrate the wood to learn the habits of another Thrush, not so remarkable for his musical powers as interesting on account of his manners. I allude to the Cat-Bird, (Turdus felivox,) well known from his disagreeable habit of mewing like a kitten. He is most frequently seen on the edge of a wood, among the bushes that have come up, as it were, to hide its baldness and to harmonize it with the plain. He is usually attached to low, moist, and retired situations, though he is often very familiar in his habits. His nest of dry sticks is sometimes woven into a currant-bush in a garden that adjoins a wood, and his quaint voice may be heard there as in his own solitary haunts. The Cat-Bird is not an inveterate singer, and never seems to make music his employment, though at any hour of the day, from dawn until dusk in the evening, he may be heard occasionally singing and complaining.