Alauda arvensis, LINNÆUS; L'alouette, BUFFON; Die Felderche, BECHSTEIN.
This bird is very generally known. Its length is seven inches, of which the tail contains three. The beak is weak, straight, cylindrical, and terminating in a point; the mandibles are of an equal length, the lower one whitish, the upper black horn colour; the iris is grayish brown; the feet of the same colour, but yellower in the spring; the height of the shanks is nearly an inch, and the hind claw is much longer than the hind toe itself.
The female is distinguished by its smaller size, by the absence of the white line round the cheeks, by the great number of black spots on the back and breast, and by the purer white of the breast.
In the house we sometimes meet with the two following varieties:--
1. _The white lark_, which is either clear white or yellowish white. He is occasionally found wild.
2. _The black lark._ The whole body of this variety is black with a rusty tinge, and the belly feathers are edged with white. I am ignorant whether this variety has ever been found wild; but it is not uncommon in dwelling houses, especially when the cages are fixed in a dark place where the rays of the sun cannot penetrate; in moulting, their colour passes away to give place to the primitive plumage, which never happens to the white variety.
HABITATION.--In a wild state, the sky-lark is found almost all over the world, frequenting fields and meadows, and by preference plains. It is a bird of passage which generally arrives in our regions in the beginning of February, and departs in great flights in the month of October[60]. No bird of passage returns so soon as the lark; but as it lives not only on insects, but eats all kinds of seeds and even grass, it can seldom be in want of provision even in the severest weather.
In rooms, it is common to let it hop about, giving it a retired corner to sleep; it is, however, also kept in cages, where it sings best. Whatever form may be given to these cages, they must be at least eighteen inches long, nine wide, and fifteen high; the bottom should have a drawer in which enough of river sand should be kept for this scratching bird to be able to roll and dust itself conveniently. It is also a good plan to have in a corner a little square of fresh turf, which is as beneficial as it is agreeable. The top of the cage must be of linen, since, from its tendency to rise for flight, it would run the risk of wounding its head against a covering of wood or iron wire, especially before it is well tamed. The vessels for food and drink must be outside, or, which I prefer, a drawer for the food may be introduced in the side of the cage: sticks are not necessary, as the lark does not perch. When it is allowed to hop free in a room, the latter must be very clean and neat, otherwise a thread or hair may entangle the feet, and if not removed it easily cuts the skin, maims the bird, and the entangled toes shrink and fall off.