HABITS. Much yet remains to be learned as to the general habits, the nesting, and distribution during the breeding-season of the Ruby-crowned Kinglet. It is found, at varying periods, in all parts of North America, from Mexico to the shores of the Arctic seas, and from the Atlantic to the Pacific; and, although its breeding-places are not known, its occurrence in the more northern latitudes, from Maine to the extreme portions of the continent, during the season of reproduction, indicate pretty certainly its extended distribution throughout all the forests from the 44th parallel northward. None of our American ornithologists are known to have met with either its eggs or its nest, but we may reasonably infer that its nest is pensile, like that of its European kindred, and from being suspended from the higher branches, from its peculiar structure and position has thus far escaped observation. In the New England States they are most abundant in the months of October and April. A few probably remain in the thick evergreen woods throughout the winter, and in the northern parts of Maine they are occasionally found in the summer, and, without doubt, breed there. In the damp swampy woods of the islands in the Bay of Fundy, the writer heard their remarkable song resounding in all directions throughout the month of June. The song of this bird is by far the most remarkable of its specific peculiarities. Its notes are clear, resonant, and high, and constitute a prolonged series, varying from the lowest tones to the highest, terminating with the latter. It may be heard at quite a distance, and in some respects bears more resemblance to the song of the English Skylark than to that of the Canary, to which Mr. Audubon compares it. Their food appears to be chiefly the smaller insects, in pursuit of which they are very active, and at times appear to be so absorbed in their avocation as to be unmindful of the near presence of the sportsman or collector, and unwarned by the sound of the deadly gun. They are also said by Wilson to feed upon the stamens of the blossoms of the maple, the apple, peach, and other trees. Like the other species, they are expert insect-takers, catching them readily on the wing. They are chiefly to be met with in the spring among the tree-tops, where the insects they prefer abound among the expanding buds. In the fall of the year, on their return, they are more commonly met with among lower branches, and among bushes near the ground. Although presumed to be chiefly resident, during the summer months, of high northern regions, Wilson met with specimens in Pennsylvania during the breeding-season; and it is quite probable that they may occur, here and there, among the high valleys in the midst of mountain ranges, in different parts of the country.