The Skylark abounds over the whole continent of Europe and its contiguous islands; in Asia it is met with as far north as Kamschatka, and we think that it may now be numbered amongst North American birds, Audubon having introduced many species into that country, in the hope of their becoming naturalised. Though somewhat rarely seen, Field Larks have been known to reach Egypt in the course of their migrations. We ourselves have seen large flocks inhabiting the Castilian highlands, and they are said to be plentiful in Algiers and Greece during the colder parts of the year. In England the Lark is always regarded as the harbinger of spring, as with us it has usually returned and selected its home by the end of April. In its behaviour this species closely resembles its congeners, but, unlike some of them, it is extremely restless, running or flying from one spot to another with a constant change of flight or step, at one moment walking slowly, repeatedly ducking its head as it goes, and the next instant darting along with the rapidity of a plover. When in the air its evolutions are most varied. While singing it usually hovers gently, or rises rapidly with regular strokes of its wings, as it carols forth its well-known lay, which may be frequently heard at intervals from early morning until after sunset, the little songster appearing quite regardless of all other pleasures or desires, as it rises higher and higher towards the clouds, which sometimes seem to hide it from our view. The night is passed upon the ground, but at the first dawn of day, this "herald of the morn," as it has been aptly called, is amongst the first to greet the rising sun, its matin song being uttered whilst still perched upon the spot that has afforded it a shelter for the night. Like the bird we last described, the Skylark lives at peace with its brotherhood until the time for choosing a mate, at which season regular pitched battles are of constant occurrence between the males, who pull and tear each other in the air until the whole party fall struggling to the ground, usually, however, without any serious injury, and quite ready to renew the combat at the first sound of their antagonist's voice; the females, meanwhile, not only seem to enjoy the scene, but sometimes assist the mate they would prefer.
The nest is constructed about the beginning of May, the birds generally selecting a corn-field as most suitable for building purposes. They choose a piece of ground some two or three hundred paces in extent, and on this they settle, the whole party being as near together as the required space will allow, so that they thus form a kind of little colony. Male and female both assist in excavating the small cavity necessary for the safe deposit of the nest, which is built of stubble, blades of grass, or fibrous roots, the interior being occasionally lined with horsehair. In this humble retreat the female lays five or six eggs of a greenish yellow or reddish white tinge, covered with brown or grey spots (see Coloured Plate X., fig. 37). Both parents assist in the work of incubation, but the largest share devolves upon the female. The young leave the nest very shortly after being hatched, and seek shelter in the neighbouring fields, the old birds being immediately busied with the cares of a second family. Of all the numerous enemies by which the Skylarks are surrounded, man himself stands pre-eminent; hundreds of thousands are annually destroyed, merely to furnish a dainty food; and we learn from a continental writer, Elzholz, that they are so much sought after in Germany, that on one special occasion to which he refers 403,455 dead Larks were sold in the town of Leipsic alone, although, he tells us, by far the greater number caught in that part of the country were disposed of in the villages before they could reach the markets in the city. These birds are attracted by any light of unusual brightness, and are sometimes allured to their destruction by a rapidly revolving mirror. Amongst their feathered enemies the hawk known as the "Hobby" is the most formidable—indeed, so extreme is the terror evinced by the little songsters on its appearance, that, if escape by other means is impossible, they will seek refuge in a passing wagon or similar hiding-place; we ourselves knew an instance in which a Skylark, driven to desperation, sought protection from its dreaded foe upon the pommel of a horseman's saddle.
The STILTED LARKS (Certhilaudæ) are a group inhabiting Africa, remarkable for their elongated bodies, small heads, and large beaks, the upper mandible of which terminates in a slight hook; they are likewise distinguished by their comparatively short wings, long, rounded tail, and very high tarsi, furnished with toes and nails of moderate length.
The SPUR LARKS (Macronyx) are distinguished by their straight, short, and powerful beaks, elevated tarsi and feet, furnished with large toes, and by their variegated plumage. The large, somewhat curved nail upon the hinder toe must, however, be regarded as the peculiar characteristic of these birds.
THE SENTRY LARK (Macronyx capensis).