"I once saw," says Buffon, "one of these birds which had been taken in a net, and being then old, or at least adult, must have had natural habits: its attachment to the person who took care of it was very strong, and even exclusive. It appeared to be happy only when alone with her; if strangers came unexpectedly it raised its crest with surprise and fear, and hid itself on the top of a bed which was in the room. Sometimes it was bold enough to come from its asylum, but it fled directly to its beloved mistress, and seemed to see no one but her. It had two very different tones; one soft, as if from within, and seemed the very seat of sentiment, which it addressed to its mistress; the other sharp, and more piercing, which expressed anger and fear. It was never kept in a cage by day or night, and was permitted to range the house at pleasure: however, though the windows were often open, it never showed the least desire to escape, its wish for liberty not being so strong as its attachment.
"This pretty bird accidentally died of hunger. Its mistress had kept it for four months, feeding it only on bread and cheese."
Cuculus canorus, LINNÆUS; Le Coucou, BUFFON; Der gemeine Kukuk, BECHSTEIN.
Although it is not larger than the turtle-dove, its length is fourteen inches, but seven of these are included in the tail, three quarters of which are covered by the folded wings. The beak, black above, and bluish beneath; the feet have two claws before and two behind. The head, the top of the neck, and the rest of the upper part of the body are of a dark ash colour, changing like the throat of the pigeon on the back and wing-coverts.
In the female, which is smaller, the upper part of the body is of a dark brown, with dirty brown spots, which are scarcely visible. The under part of the neck is a mixture of ash grey and yellow, crossed with dark streaks. The belly is of a dirty white, with dark transverse lines.
HABITATION.--When wild, it is a bird of passage, which arrives in April and departs in September, and even much sooner, according to an English observer.
In the house, it may be let run about, or confined in a large wooden cage.
FOOD.--When wild, it eats all sorts of insects, particularly caterpillars on trees.