It is said to be most common in the hot interior valleys of California, where are large herds of cattle, upon which it, to a large extent, depends for its food. Dr. Cooper saw none on the Colorado, and met with none east of the San Bernardino Mountains. Even at Fort Mohave the cattle killed during the five months he resided there did not attract one of these Vultures.
Dr. Cooper did not see these birds in any number along the sea-coast, and has noticed none on the islands or in the highest Sierra Nevada. Yet they are said, when other food is scarce, to feed on dead seals and whales; but this fact he has never witnessed.
Dr. Newberry states that it was to him a pleasant portion of every day’s experience, in his march through the Sacramento Valley, to watch the graceful evolutions of this Vulture. In its colors the combination was a pleasing one, while its flight was easy and effortless beyond that of any other bird. Though a common bird in California, he found it much more shy and difficult to shoot than its associate, the Turkey-Buzzard; and it was never seen in such numbers or exhibiting such familiarity as the smaller species which swarm, and are such efficient scavengers, in our southern cities. After his party left the Sacramento Valley, he saw very few in the Klamath Basin, and met with none within the limits of Oregon. It is occasionally found there, but much more rarely than in California.
Dr. Newberry states that a fine specimen presented to Dr. Sterling on his return to San Francisco ate freely of the meat given him, and was for some time kept alive. It was, however, impatient of confinement, and succeeded in tearing the cord that confined him from his legs, and in making his escape. Dr. Cooper also saw one of these Vultures in confinement, at Monterey, in the possession of Dr. Canfield. This was a full-grown individual which he had raised from the nest. It had been fed exclusively on fresh meat, had no offensive smell, and was clean and shining. It was gentle and familiar, but seemed stupid, and dozed most of the time on a fence. This was subsequently presented to the Zoölogical Society of London, and formed the subject of our figure. The figure of the young bird on the next page is taken from a photograph of the same specimen at an early age.
Pseudogryphus californianus.
Dr. Heermann, in his Report on Lieutenant Williamson’s Survey, mentions having observed this Vulture sailing majestically in wide circles at a great height, and ranging by its powers of flight over an immense space of country in search of food. Often when hunting in the Tejon Valley, if unsuccessful, they would be several hours without seeing one of this species; but as soon as they succeeded in bringing down any large game, these birds would be seen rising above the horizon before the body had grown cold, and slowly sweeping towards them, intent upon their share of the game. In the absence of the hunter, unless well protected, these marauders will be sure to drag out from its concealment the slain animal, even though carefully covered with branches. Dr. Heermann states that he has known them to drag out and devour a deer within an hour. This Vulture possesses immense muscular power. Dr. Heermann has known four of them to drag the body of a young grizzly bear, that weighed over a hundred pounds, the distance of two hundred yards. Dr. Cooper states that it visits the Columbia River in autumn, when its shores are lined with great numbers of dead salmon, on which, in company with other birds and various animals, it feasts for a couple of months. He considered it, however, only a visitor at certain seasons, and not a resident even through the summer. He did not see it, nor did he hear of its presence at Puget Sound.
Pseudogryphus californianus.
It is stated by Douglas that these Vultures will in no instance attack any living animal unless it be so severely wounded as to be unable to walk. Their senses of sight and smell are very acute, especially the former; and when searching for prey they soar to a very great height, and if they chance to discover a wounded animal they immediately follow and attack it whenever it sinks down. The first comers are soon followed by others, and it is not long before the carcass is reduced to a skeleton. After thus feeding, they remain for a while sluggish and reluctant to move. At these times they perch on dead trees, with their heads drawn down, and their wings drooping over their feet. Except after feeding, or when protecting their nests, they are said to be very wary, and are with great difficulty shot by the hunter. Their flight is described as slow, steady, and graceful, and they glide along with little or no perceptible motion of the wings, the tips of which are curved upward in flying, in the manner of the Turkey-Buzzard. They are said to appear most numerous and to soar the highest preceding thunder-storms and tempests.