THE TAWNY GOOSE VULTURE (Gyps fulvus).
THE CRESTED VULTURE.
The VARIEGATED or CRESTED VULTURE (Vultur occipitalis) is an inhabitant of Central Africa, and is now regarded as the type of a distinct group (Lophogyps). In this bird the entire upper part of the body, breast, and tail, are covered with black feathers, edged with brown; the region of the crop, belly, feet, and secondary quills are pure white, the primaries black. The crest is composed of white woolly down; the bare neck is blueish white, and covered in front with from eight to ten lines of small blackish warts; the eye is dark brown, the beak blackish blue at its tip, and reddish brown at its base; the lower mandible and cere are light blue; the feet pale purple, or reddish white. The plumage of the young is of an uniform dark blackish brown colour, the eye is grey, the beak red, and the foot white. This species of Crested Vulture inhabits all the woodland districts of California, where it lives either alone or in pairs, and though by no means shy, seldom ventures near towns or villages. In its general habits it closely resembles its congeners already described.
The EARED VULTURES (Otogyps) may be regarded as by far the most powerful members of this voracious family; they are easily recognised by their large strong head and beak, large, broad, and slightly rounded wings, comparatively short tail, long legs, and very peculiar plumage. As respects the latter, only the upper part of the body resembles that of other Vultures, the lower portion being covered with thick, long, greyish down, interspersed with a few long, narrow, sabre-shaped feathers. The legs are covered either with a similar, but longer and reddish yellow down, or with small feathers of the usual description. The head, back of the neck, and entire front of the throat are bare, and the chin is overspread with hair-like feathers. A reddish brown of various shades predominates in the coloration of the plumage; the quills and feathers of the tail have a dark, and those of the large wing-covers a light edge. Yellowish white feathers are often intermixed with those upon the back and nape. The young are distinguished by the darker hue of their plumage, and by the borders to the feathers on the lower part of the body being broader than in the parent birds. The eye is dark brown, the beak grey at its sides, deeper in shade upon the culmen and upon the lower mandible; the feet are light grey, as are the bare parts of the neck: the naked cheeks are violet. When the bird is excited these bare places become bright red.
The Eared Vultures are found throughout Africa, and have occasionally visited Europe. In Asia they are replaced by the Sukuni, or Bald Vulture (Otogyps calvus). In their habits they are bold and social, and everywhere frequent the vicinity of man, coming down into the villages with the utmost confidence, in order to gather up the refuse thrown from the slaughter-houses and dwellings. With such extraordinary eagerness and voracity do these birds attack their prey, that (as Jerdon witnessed) a party of Vultures devoured the body of a dead dog, and picked the bones completely clean in the course of a few minutes. The toils of the day completed, they go in search of water, and, after preening themselves, lie down to roll in the sand and bask in the sunshine; this performance over they retire to their sleeping-place in a tree, where they perch bolt upright, with head drawn in, and tail hanging loosely down, until a late hour in the following morning. So large an amount of rest do these Vultures require, that they do not commence the duties of the day until about ten o'clock, and seldom seek for food after about four or five in the afternoon; and, so soundly do they sleep, that upon one occasion we rode around the tree in which a large party was perched without arousing them. A shot fired amongst them only had the effect of causing them to rise drowsily into the air, and fly heavily to a distance of about five hundred paces, when they again settled upon some branches to finish their interrupted slumbers. The flight of these birds is very graceful, and particularly quiet and easy. When about to descend they open their wings, stretch out their feet, and reach the ground in a direct line, without the slightest movement of their broad pinions. The nests are built close to each other, upon a ledge of rock, and thus form a kind of settlement, which is for the most part quite inaccessible, owing to the precipitous nature of the locality usually selected; we have, however, made various successful attempts to reach them with the help of a Hottentot guide, but found the stench from the eyries intolerable, and the surrounding rock perilously slippery, being, as it were, polished by constant friction. The brood consists but of one white egg, which is laid about October: the nestling, when first hatched, is covered with white down, and is not fully fledged until the month of January. The Eared Vulture thrives in captivity, and can easily be rendered very tame.
The RAVEN VULTURES (Cathartæ), a group of much smaller birds than those above described, are recognisable by their long beaks, pointed wings, and slender tarsi; their heads are either wholly or partially bare, and in some species covered with warts. The members of this group, as their name suggests, in many respects resemble the Ravens, and may be regarded as replacing those birds throughout South America, whilst such as are found in Africa and India associate freely with Crows, and lead a very similar life. The nest is usually built upon rocks or trees, and the brood consists of one, or at most of two eggs.