the period of incubation, all are quiet, unobtrusive birds, easily distinguished from our Field Lark by their crest, which is always held erect upon the head, but closely resembling their congeners in their flight and movements upon the ground. Their song is sweet and silvery in its tone, and though somewhat melancholy, is much admired; many esteem the species found in the desert as the most gifted in this respect, but we imagine this merely to proceed from the fact that any pleasing sounds have a double charm when heard amidst the gloom of those dreary and usually silent wastes. Seeds, tender shoots, and insects constitute their principal food, the latter also forming the principal nourishment of the young birds. The nest, which is built in fields, vineyards, or gardens, is placed upon the ground, and so well concealed as to be not easily found, though often situated in localities much frequented by man. The eggs are yellow or reddish white, marked with numerous grey or yellow brown spots; the first brood consists of from four to six eggs, the second seldom of more than three or four. Both sexes assist in the work of incubation, taking their place upon the eggs by turns; the young are hatched in about a fortnight, and are carefully tended by both parents; they remain close to the nest until they can fly with ease, taking refuge within it in case of danger. Compared with many members of the Lark family, the birds belonging to this group may be said to live in safety from the pursuit of man, as their flesh is not much esteemed as an article of food. [Illustration: THE TUFTED LARK (_Galerita cristata_).] THE WOOD LARK. The WOOD LARK (_Corys alauda arborea_) is distinguished by its inferior size, small wings, large, broad, and rounded tail, and scarcely perceptible tuft upon its head. Its length never exceeds six inches, its breadth is eleven and three-quarter inches, the wing measures three and a half inches, and the tail two inches. The female is smaller than her mate. The plumage is brownish yellow, shaded with rusty red; the belly white, striped with black as far as the breast; the four exterior tail-feathers are white, or of a yellowish shade; a light blue line passes over the head at the base of the upper mandible, running above the eyes, and around the crest. The feathers on the back of the young have a dark border. [Illustration: THE SKYLARK (_Alauda arvensis_).]