The CHIMBORAZIAN HILL-STAR (_Oreotrochilus Chimborazo_), one of the most magnificent members of this group, has a powerful body, long, thin, and slightly-curved beak, moderate-sized but strong wings, a broad rounded tail, formed of pointed feathers, and powerful feet, partially covered with down. The sexes differ considerably in appearance. The male is of a resplendent violet on the head and region of the throat, with greyish olive-brown mantle and white belly, shading to yellowish brown at its sides; the centre of the throat is decorated with a long triangular patch of glossy green, divided from the light under side by a line of velvety black; the quills are purplish brown, and the centre tail-feathers dark green, the rest greenish black on the outer and white on the inner web; the beak and feet are black. The female is olive-green on the back, and olive-brown on the under side, slightly marked with a lighter shade; the breast is white, each feather spotted with brown at its tip; the centre tail-feathers are brilliant dark green, the rest light greenish brown, and white towards the root; the two exterior feathers have a white spot on the inner web. The body is four inches and three-quarters long; the tail measures two inches and three-eighths. [Illustration: THE CHIMBORAZIAN HILL-STAR (_Oreotrochilus Chimborazo_).] "This beautiful species," says M. Jules Bourcier, "is exclusively confined to the volcanic mountain, Chimborazo. Here, at an altitude where vegetation ceases, and near the eternal snows, it loves to dwell, the height of its range appearing to be governed by that of the chuquiraga, its favourite shrub, the flowers of which afford it an abundance of nectarian and insect food. It is solitary in its habits, and so pugnacious that it immediately offers battle to intruders on its haunts. The male perches on the extremity of the most elevated branch, and is rarely found near the female, which, unlike her mate, invariably perches near the ground, a circumstance that, combined with her sombre colouring, renders her very difficult of detection. Both sexes retain their greyish green garb during the first year of their existence; the young males may, however, be at all times distinguished by a tolerably well-defined collar of olive-green and brown. The nest is formed of lichens, and is either suspended to or sheltered beneath a ledge of rock. The eggs, two in number, have a white shell." * * * * * The SABRE-WINGS (_Campylopterus_) are at once recognisable from the peculiar shape of the wing, which is broad, with the anterior quills strongly curved, their shafts, in adult birds, becoming suddenly dilated. The tail is large and blunt or broadly rounded at the end, and the powerful beak, which is half as long again as the head, but slightly curved, compressed at its sides, and broader than it is high. The legs are delicate, and the claws long. DE LATTREI'S SABRE-WING.