The BLACK-CAP MANAKIN (_Pipra-Chiromachæris-Manacus_) is the representative of a group known as the _Chiromachæris_, recognisable by their high tarsi, the sickle-shaped form of the first primary quill, and the beard-like development of the plumage in the region of the chin. In the Black-cap Manakin the top of the head, back, wings, and tail are black; the rump grey; the neck, throat, breast, and belly white. The plumage of the female is entirely green. The eyes of both sexes are grey, their beaks lead-coloured, and whitish on the lower mandible; the feet are pale yellowish flesh-colour. "This beautiful bird," says the Prince von Wied, "is found extensively throughout South America, and is particularly numerous in Guiana, living, except during the breeding season, in small parties and flocks, that keep either quite close to the ground, or at no great distance from its surface. When in flight they move from spot to spot with astonishing celerity, the rapid action of their wings occasioning a strange loud sound, not much unlike the drone of a spinning-wheel." The voice of the Black-cap Manakin is likewise described by travellers as very remarkable. It is, we are told, capable of uttering two entirely dissimilar notes, the first of which resembles the sharp, cracking noise produced by breaking a nut, followed by a bass note so deep as to lead travellers to suppose it to be rather the growl of a large quadruped than the cry of a small bird. The food of this species consists of insects and berries. The nest is similar to that of its congeners. In Brazil the Black-cap Manakin is called the "Mono," or "Monk," from the faculty it has of inflating the feathers upon its throat in such a manner as to resemble a beard. * * * * * The PANTHER BIRDS (_Pardalotus_) constitute a group of small Australian species, very nearly allied to the Manakins, but possessing short thick beaks, very broad at the base, and deeply indented behind the hooked tip of the upper mandible. Their feet and tarsi are long and thin, the exterior and centre toe being partially united; the wings are pointed, the tail short. The plumage is conspicuous for its elegant markings. THE DIAMOND BIRD. The DIAMOND BIRD (_Pardalotus punctatus_), as the best known species is called, has received its name from the spots on its plumage. The crown of the head, wings, and tail, are black, with a round white patch at the tip of each feather; a white streak passes above the eyes, the cheeks and sides of the neck are grey, the feathers on the back grey, shading at their roots into brown, and edged with black at the extremities. The uppermost tail-covers are cinnabar-red; the front of the throat, breast, and lower tail-covers yellow; the belly and sides are yellowish red; the eyes deep brown, the beak brownish black, and the feet brown. The female resembles her mate, but is somewhat less brightly coloured. Both sexes are three inches and a half long.