The mules, produced by the siskin pairing with the canary, partake of the two species, and are very prettily spotted if the canary is yellow; but this union is not so easy as that with the green canary, which appears to bear a nearer relation to the siskin.
Diseases.—To the other maladies common to the birds of this family we must add epilepsy, of which these birds often die[50]. They may, however, be kept from eight to twelve years.
Mode of Taking.—With good traps and nets made for this purpose, several dozen of these birds may be taken at once in the winter. They also collect in numbers, in the spring, on the decoy bush, and they are so fearless, that in the villages a person, who has his house situated near a stream bordered with alders, need only place a siskin in the window, near a stick covered with bird-lime, and he may catch as many as he wishes. I have caught some at my window in a cage strewed with hemp and poppy-seed, by letting the door fall by means of a string, when the birds had entered, one of the decoy birds in my room serving to attract them. When the place where they drink at noon is discovered amongst the alders, numbers may be caught by merely laying across the stream some branches covered with bird-lime.
Attractive Qualities.—Their plumage and song are both attractive, though with the latter several tones are mingled, that somewhat resemble the noise made by a stocking-loom. This makes them great favourites with stocking-weavers. They imitate tolerably the song of other birds, such as that of the tit, the chaffinch, and the lark; but they cannot give a musical air. Their carolling is only interrupted during moulting, and very much tends to excite their companions to warble in their turn. The loss of their liberty affects them so little, that they will eat as soon as let out of the hand, after being caught, and on the second day will allow any one to approach their cage without alarm. They are soon taught to draw up little buckets, and many other little manœuvres that they execute gaily; there is no difficulty in accustoming them to go and return if the winter is chosen; the cage should be kept open at the window, and hemp and poppy-seed scattered at the entrance; they will return there in general, and bring several companions with them. This plan will not succeed so well in March, September, and October, the time when these birds roam through the country in search of food, though I have seen some tamed in this manner return after a long absence.
THE RING SPARROW.
Fringilla petronia, Linnæus; La Soulci, Buffon; Der Graufink, Bechstein.
Independently of the beak, this bird may be taken for a female yellowhammer, as it resembles it so much in its shape and plumage. Its length is five inches three-quarters, of which the tail measures two. The beak, five lines long, is thick at the base, grey brown above, and white below. The feet, ten lines high, are grey brown; the whole head is of a reddish ash-colour, but a dirty white ring surrounds it from one eye to the other.
The female is greyer on the upper part of the body, and the front of the neck is only pale yellow.
Observations.—Ring sparrows are found in most European forests, or woods; they are common enough in several parts of Germany[51], those that inhabit the northern parts removing in winter; but the others are stationary.