This species is widely spread over the United States, Mexico and the West Indies. Trappers have found it in abundance amid the wild solitudes of Oregon and the gorges of the Rocky Mountains. The great body of these birds winter within the tropics, from whence they reach the Southern States early in spring, and Pennsylvania in April. They begin to build in May, choosing for this purpose either the thickest parts of the forest or a low meadow, retired from the intrusion of man. The nest is constructed of dry leaves and grass, and always concealed by thick grass, heaps of brush or other undergrowth. Indeed few of our songsters are more shy or modest than the Yellow-Throat, and he seems to be devoid of the apparent vanity evinced by most birds of handsome or gaudy plumage. The lonely banks of a small stream, overgrown with reeds and bushes, is his favorite haunt; and here, with his sober mate, he whiles away the long sultry days of our summer’s heat. The eggs are five in number, either entirely white or of a pale pink tint, varied by minute specks and lines, mostly toward the greater end. After being hatched, which occurs in June, the young birds join the parent pair, and all live as one family, roving along creeks and marshes, and defending each other from enemies. Sometimes, however, a second brood interrupts this connection. In August the lively song of the male ceases to be heard, and the whole party continue their pursuits in silence until warned by a scarcity of food to depart for the South. The Maryland Yellow-Throat is nearly five inches long, and more than six across the spread wings. The upper parts are a light olive; the throat and breast yellow; the wings and tail brown, mixed with black; the legs are pale flesh-color, and remarkable for their delicacy. The young resemble the female at first, but the male of the season, before his departure in autumn, exhibits the brilliant yellow throat, as well as some appearance of the gray and black which ornament the sides of the face in the adult. Small insects form the almost exclusive prey of this bird, and in capturing them he often displays much art and agility. His song is a plaintive whistle, varying in power and cadence, and sometimes associated with partial imitations of other birds. In September, small flocks depart for the South, only a few stragglers being seen after that month. A few pass the winter in the Southern States, but as already stated, the greater portion retire within the Tropics. [Illustration] SUMMER YELLOW-BIRD, OR WARBLER.