Central America is the home of several beautiful species of those minute members of the feathered tribe--the humming-birds. Among them is found the slender shear-tail, which will be known by its deeply-forked black tail, its wings of purple-brown, and its body of deep shining green, changing to brown on the head, and bronze on the back and wing-coverts. The chin is black, with a green gloss; the throat is of a deep metallic purple; while a large crescent-shaped mark of huff appears on the upper part of the chest. There is a grey spot in the centre of the abdomen, and a buff one on each flank, the under tail-coverts being of a greenish hue. The female differs greatly from her consort. Her tail is short, the central feathers being of a golden green; the exterior ones rusty-red at their base, and black for the greater part of their length, with white tips. The upper part of her body is also of a golden green; the lower of a reddish-buff. THE RUFUS FLAME-BEARER. The beautiful little rufus flame-bearers belong to the genus Phaethornis. They are known by their long, graduated tails, all the feathers of which are pinnated--the two central ones extending far beyond the others. "They may be seen early in the year, darting, buzzing, and squeaking in the usual manner of their tribe, engaged in collecting sweets in all the energy of life, appearing like breathing gems--magic carbuncles of glowing fire--stretching out their glorious ruffs, as if to emulate the sun itself in splendour. The female sits towards the close of May, when the males are uncommonly quarrelsome and vigilant, darting out as the stranger approaches the nest, looking like angry coals of brilliant fire, returning several times to the attack with the utmost velocity, at the same time uttering a curious, reverberating, sharp bleat, somewhat similar to the quivering twang of a dead twig, and curiously like the real bleat of some small quadruped. At other times the males may be seen darting high up in the air, and whirling about each other in great anger and with much velocity. "The nests are funnel-shaped, measuring about two and a quarter inches in depth, and one and three-quarters in breadth at the upper part, composed of mosses, lichens, and feathers woven together with vegetable fibres, and lined with soft cotton." This description is given by Mr Nuttal the naturalist, and quoted by Audubon. PRINCESS HELENA'S COQUETTE.