The HALF-BILLS (Hemignathus) are a group of Spider-eaters that are easily recognisable by the strange formation of their beak; the upper mandible terminates in a sharp point, and is always much longer than the under portion of the bill, sometimes twice its length. The toes, also, are comparatively long, and the foot short. The plumage is usually green upon the back, and of a yellowish tint beneath. All the members of this group inhabit Oceania.
THE BRILLIANT HALF-BILL.
The BRILLIANT HALF-BILL (Hemignathus lucidus), one of the most beautiful members of this group, is olive-green upon the entire mantle, shading into grass-green on the top of the head and at the edges of the wings. A stripe over the eyes, and the sides of the head and throat are orange-red; the breast is bright yellow, the belly of a paler shade, and its lower portion greenish grey. In young birds the back and region of the eye are olive-green, the under side light greenish grey, and the belly pale yellow. This species is six inches long, but of this measurement one inch and three-quarters belong to the tail, and one inch and a quarter to the beak; the lower mandible does not exceed eight lines in length. We are without particulars as to the life of this bird, except that it inhabits the Pisang plantations.
The HANGING BIRDS (Arachnocestra) are recognised by the great length of their slightly-curved beak, the base of which is as broad as it is high; the upper mandible is delicately incised, and the entire bill of almost equal thickness, only tapering gently towards the extremity; the legs are slender, the toes long, and the wings (in which the fourth, fifth, and sixth quills exceed the rest in length) of moderate size; the tail is short and rounded.
THE TRUE HANGING BIRDS.
The TRUE HANGING BIRDS (Arachnocestra longirostris) are olive-green on the back, and sulphur-yellow on the under side; the throat and upper breast are white, the quills and tail-feathers deep brown, the former edged with olive, and the three outer tail-feathers tipped with white; the beak and feet are blackish grey. This species is six inches and a half long, the wing measures two inches and two-thirds, and the tail one inch and three-quarters.
THE HANGING BIRD (Arachnocestra longirostris).
These birds frequent banana plantations, and usually betray their presence by their shrill chirping cry. Were it not for the constant repetition of their note they would rarely be observed, as the hues of their plumage render it almost impossible to detect them among the foliage. We learn from Bernstein that their manner of building is very remarkable. The oval-shaped nest, some six or seven inches long, and three or four inches broad, is attached by threads to a large leaf, in such a manner that the latter forms the fourth side. Fine grass and fibres are employed for the interior, and half-decayed leaves, of which little more than the fibrous portion remains, are used for the outer wall, so that, when completed, the curious structure has rather the appearance of a substantial spider's web than of a bird's nest. The entrance is at one end. The eggs, two in number, are pure white, spotted with reddish brown at the broad extremity.