FOOD.--When wild, the food consists of insects, especially ants' eggs; also of all kinds of seeds, and in autumn of oats, which these birds skin by striking them against the ground, their beak being too weak to shell them alone. In the spring the sprouting seeds and young buds, also the blades of young grass, are eaten, and grains of sand help their digestion.
In the house, if the lark is hopping about, nothing is better than the first universal paste described in the Introduction; but if caged the second will suit it better. Poppy-seed, bruised hemp, crumb of bread, and plenty of greens, as lettuce, endive, cabbage, or water-cress, according to the season, must be added. A little lean meat and ants' eggs are favourite delicacies, which make it gay and more inclined to sing. When old larks are first made prisoners, they must be fed only with oats and poppy-seed to reconcile them to captivity.
BREEDING.--The lark lays but once a year in cold countries, twice in the temperate, and three times in the warmer climates. Its nest, formed on the ground in a little hollow, is made without much art of straw, and the wool and hair of animals, and by preference in hollow ground or among the summer crops of grain. The eggs, in number from three to five, are of a whitish gray, spotted and dotted with dark gray; incubation lasts fourteen days. By the end of April the young are often hatched, and are at first only fed with insects, and leave the nest before they can fly; but they nevertheless continue to be fed by the mother till they can follow her in her excursions. Before the first moulting all the upper part of the body is dotted with white; if it is wished to take nestlings, they must be removed from the nest when the tail is about three quarters of an inch long. They are fed with crumb of white bread, and poppy-seed steeped in milk; some ants' eggs or a little minced lean meat will be a wholesome addition. The males are soon distinguished by their yellow colour. If it is intended to teach them to perform a tune, their instructor must commence before they are ready to fly, for by that time they already begin to record their natural song. They must also be completely separated from other singing birds, otherwise the great flexibility of their organs, joined to their memory, will infallibly cause them to adopt the song of such birds as they are near; and even old larks, brought into my bird-room, have learnt to imitate perfectly the nightingale and chaffinch. They vary, however, very much in this respect. Some females in confinement lay without the presence of a male, and others pair, but I have never yet succeeded in making them sit. One of my neighbours, notwithstanding the greatest care, has succeeded no better, though he had a female which laid from twenty to twenty-five eggs annually. There would undoubtedly be a better chance of success in a large garden aviary[61].