The _Ruby-throated Humming Bird_ is the only species of the genus found in the limits of the states, though there are upwards of one hundred in America. Its approach to the north is regulated by the advance of the season. He is extremely fond of tubular flowers, particularly of the blossoms of the trumpet flower. When arrived before a thicket of these, that are full blown, he suspends himself on wing for the space of two or three seconds, so steadily that his wings become almost invisible; the glossy golden green of his back, and the fire of his throat, dazzling in the sun, form altogether an interesting spectacle. When he alights, he prefers the small dead twigs of a bush, where he dresses and arranges his plumage with great dexterity. His flight from flower to flower greatly resembles that of a bee, but is infinitely more rapid. He poises himself on wing, while he thrusts his long slender tongue into the flowers in search of food. He sometimes enters a room by the window, examines the bouquets of flowers, and passes out by the opposite door or window. He feeds on the honey extracted from flowers, and on insects. ‘The old and young,’ says Mr. Nuttall, ‘are soon reconciled to confinement. In an hour after the loss of liberty, the little cheerful captive will often come and suck diluted honey, or sugar and water, from the flowers held out to it; and in a few hours more, it becomes tame enough to sip its favorite beverage from a saucer, in the interval flying backwards and forwards in the room for mere exercise, and then resting on some neighboring elevated object. In dark or rainy weather, they seem to pass the time chiefly dozing or on the perch. They are also soon so familiar as to come to the hand that feeds them. In cold nights, or at the approach of frost, the pulsation of this little dweller in the sunbeam becomes nearly as low as in the torpid state of the dormouse; but on applying warmth, the almost stagnant circulation revives, and slowly increases to the usual state.’ _Belted Kingfisher._――This is the only species of its tribe found within the United States, where it frequents the banks of all the fresh water rivers from Maine to Florida. His voice is loud, rattling, and sudden. His flight is rapid, and is sometimes prolonged to very considerable distances. He follows up the course of the rivers to their very fountains, and his presence is a sign of abundant fish. Mill-ponds, where the water is calm, are favorite resorts of this bird, and its eggs are generally found in places not far from a mill worked by water. The kingfisher, for many successive years, returns to the same hole to breed and roost. Its flesh is oily and disagreeable. Illustration: Belted Kingfisher.