The GOLDEN CUCKOOS (_Chrysococcyx_), as a most gorgeous group have been appropriately called, inhabit the equatorial regions of Asia, Africa, and Australia. These birds are distinguished by their comparatively small, slender body, long wings, and tail. The beak, which is of medium size, exactly resembles that of the Common Cuckoo; the tarsi are short, and the toes long; the wing is pointed, the tail rounded at its sides, and the compact, large-feathered plumage dyed with hues of more than metallic brilliancy. THE DIDRIK, OR GOLDEN CUCKOO. The DIDRIK, or GOLDEN CUCKOO (_Chrysococcyx auratus_), is of a dazzling metallic green, shaded with copper-red over the entire mantle, the glowing effect being heightened by a blueish effulgence at the tips of some of the feathers. A white stripe passes behind the eye, and the brow is decorated with a white spot; the entire under side is light brownish or yellowish white, of so delicate a shade that exposure to the sun's rays soon renders it almost white. The feathers on the sides, tail, and lower wing-covers are greenish; the secondaries, exterior primaries, and outer tail-feathers deep green, striped with white; the eye is deep yellowish brown (during the breeding season that of the male is deep red), the eyelid coral-red, the beak deep blue, and the foot light greyish blue. The male is seven inches and a half long, and twelve inches and three-quarters across; the wing measures four inches and one-sixth, and the tail three inches and a quarter. The female has a spotted under side, and is somewhat smaller and less gorgeous than her mate. In the young birds the lower parts of the body are shaded with yellow, the breast and throat of a metallic green, the feathers on the back edged and the quills spotted with reddish yellow. [Illustration: THE DIDRIK, OR GOLDEN CUCKOO (_Chrysococcyx auratus_).] According to Le Vaillant, the Didrik is numerously met with throughout Southern Africa, where it inhabits the primitive forests, and frequents the loftiest and most densely foliaged trees. Heuglin, who observed this species near the White and Black Nile and in Abyssinia, tells us that it often associates in small parties, and occasionally ventures down upon the trees and hedges that surround the villages, making itself very conspicuous by its loud, flute-like, piping cry and pugnacious propensities. The snow-white eggs of the Golden Cuckoo are always deposited in the nest of another bird. * * * * *