All the various members of this family are stoutly built, with large heads, beaks of short or moderate length, long and very broad wings, short tails, and rather flat feet, furnished with toes of middle size, armed in some species with a spur-like nail: the tail, which is by no means large, is composed of twelve feathers evenly cut off at their extremity. The plumage is of a brownish shade, nearly alike in the two sexes, but varying considerably as the birds increase in age. The internal structure of the body differs in no essential particulars from that of other Passeres. The skeleton is powerful; the bones for the most part filled with air, and without marrow; the singing apparatus is well developed; the lungs are large and the gizzard muscular; there is no crop. These birds inhabit the open country, whether cultivated or not, and are most numerously met with in temperate latitudes, some preferring fields, whilst others are restricted to steppes or desert plains. Most species must be considered as migratory, that is to say, such as are found in the more northern countries seek for sunnier climes when winter approaches, whilst those that inhabit the South may be regarded as stationary; but in no case do these migratory excursions extend to any great distance; and though the Larks are amongst our first visitors, their stay with us is never protracted beyond the autumn. The behaviour of all the members of this group is characterised by many peculiarities that distinguish them from other Passeres. When upon the ground they do not hop, but _step_ with surprising rapidity, and their flight is remarkable for the variety of the evolutions by which it is accomplished. Should the bird be eager to reach its destination it flies in large undulating curves, produced by alternately opening and closing the wings; but if, on the contrary, the little warbler is about to pour forth its glorious song, it darts straight into the sky, like an arrow from a bow, or else rises rapidly, but more leisurely, in a series of spiral circles until it is quite out of sight. When about to descend, it hovers for a short space in one spot, and then by a sudden plunge reaches the ground, with body contracted and wings completely closed. At other times it may be seen skimming close to the earth, or over the surface of a sheet of water, occasionally varying these several kinds of exercise or amusement by chasing its companions in buoyant and sportive flights through the air. As regards their capabilities, the Larks have certainly been highly favoured by Nature, but their intelligence is by no means equal to their other endowments. Most of the members of this family are good singers, some of them very highly gifted in that respect, and capable not only of uttering a great variety of notes, but of imitating many of the sounds they hear. All are of a cheerful and restless disposition, associating but little with other birds, and exhibiting no fear of man or his snares,