At the time of their introduction the shade-trees in the parks and squares of New York, Philadelphia, Brooklyn, Newark, and other places, were greatly infested with the larvæ of the measure-worms that destroyed their foliage. Since then these worms have almost entirely disappeared. A doubt has been expressed whether the Sparrows destroy these insects. That they eat them in the larvæ form I do not know, but to their destruction of the chrysalis, the moth, and the eggs, I can testify, having been eye-witness to the act.
Apprehensions have been expressed lest these new-comers may molest and drive away our own native birds. How this may be when the Sparrows become more numerous cannot now be determined, but so far they manifest no such disposition. Since their introduction into Boston the Chipping Sparrows appear to have increased, and to associate by preference with their European visitors, feeding with them unmolested. I have been unable to detect a single instance in which they have been molested, in any manner, by their larger companions. Their predatory aggressions, however, upon the rights of the common Robin have been noticed, and deserve mention. The Sparrows appear to be extravagantly fond of earthworms, but not able to hunt for them themselves. They have learned to watch the Robin as it forages for these worms, keeping around, at a respectful distance, and as soon
as one, with much toil, has dragged a worm from its place of concealment, down swoops the bird and impudently carries it off. The poor bewildered and plundered Robin essays a late and vain attempt to protect its food. The Sparrow is too nimble, and the worm is gone before its rightful owner can turn to face the robber.
The Sparrows endure the severest of the winter weather without any apparent inconvenience, appearing as cheerful, contented, and noisy with the thermometer at zero as at any other time. They are quite fearless, especially in New York, running about under the feet of the passers-by with perfect indifference and confidence. In Boston I have noticed their nests in convenient places, a few feet above crowded sidewalks. In winter they come regularly about the houses to be fed.
The House Sparrow has also been introduced into Australia, where it has become acclimated, and was, at the last accounts, rapidly increasing in that quarter. It is likewise very common about Havana, Cuba.
In the Old World this bird has a widely extended area of distribution, and is resident wherever found. It is very abundant in the British Islands and throughout the northern and central portions of Europe. In Spain and in Italy it is replaced by two closely allied species or races. This bird, however, is also found in North Africa, in the Levant, at Trebizonde, and among the mountains of Nubia. Specimens have also been received from the Himalayas, from Nepaul, and the vicinity of Calcutta.
Both in Europe and in this country the Sparrows pair early in the season. I have known them sitting on their eggs, in Boston, in March. They are very prolific, have broods of five, six, and even seven at a time, three or four times in a season. They are full of life and animation, somewhat disposed to brief and noisy quarrels, which are always harmless.
Their great attachment and devotion to their young is dwelt upon by all English writers as quite remarkable. They evince a great partiality for warmth, and even in midsummer line their nests with all the feathers they can pick up. In New York it is a favorite amusement with the children to carry with them to the public parks quantities of feathers, which they throw, one by one, to the Sparrows, to witness their amusing contests for possession.
The eggs of this bird are oval in shape, pointed at one end, with a ground of a light ashen color, blotched, dotted, and streaked with various shades of ashy and dusky brown. They measure from .85 to .95 of an inch in length, and from .60 to .65 in breadth.
Subfamily SPIZELLINÆ.—The Sparrows.