Habitation.—In its wild state this small species of owl frequents old buildings, towers, and church walls, where its nest is also found[14].
In the house it must always be kept in a cage, which may be hung in the window, for if permitted to mix with the other birds it would kill them.
Food.—When wild its general food is mice and large insects; I have also found in the indigested remains which this, like other birds of prey, discharges from its stomach, a considerable quantity of the fruit of the red cornel tree (Cornus sanguinea, Linnæus). This proves that it also feeds on berries.
In the cage it may be kept for some time in good health, without having its excrements tainted, if fed on dried mutton: the skin, fat, and bones must be removed, and the meat left to soak in water for two days before it is eaten. Three quarters of an ounce a day of this meat dried will be sufficient, particularly if now and then some mice or birds be given it, which it swallows, feathers and all; it can devour as many as five mice at a meal. It begins to wake up at about two in the afternoon, and then becomes very lively, and soon wants its food.
Breeding.—The female lays two white eggs, which the male takes his turn to sit upon; the young ones may be very easily reared on fresh meat, particularly on pigeons. Before the first moulting the head is of a soft reddish grey clouded with white. The large round spots on the back become gradually more marked, and the reddish white of the under part by degrees acquires long streaks of brown on the breast and sides.
Diseases.—If great care be not taken sometimes to give it mice or birds, the fur and feathers of which cleanse the stomach, it will soon die of decline.
Mode of Taking.—When the place of its retreat during the day is discovered, it cannot fail to be taken if a net in the form of a bag or sack be placed over the mouth of the hole, for the bird will by this means entrap itself when endeavouring to come out for the evening.
Attractive Qualities.—This bird, which is very cleanly, always deposits its dung in one particular spot. Its singular motions are amusing, but its harsh cry, and restlessness, particularly during the season of copulation, are rather disagreeable. It is much used on the continent as a decoy, to entrap small birds.