This section is from the book "A Library Of Wonders And Curiosities Found In Nature And Art, Science And Literature", by I. Platt. Also available from Amazon: A library of wonders and curiosities.
The following account of the curiosities of The Ostrich, is taken from Lichtenstein's Travels in South Africa, vol. II. - "The habits of the ostrich are so remarkable, and have been so imperfectly described by travellers in general, that I cannot forbear bringing together here all the knowledge I acquired upon the subject, both in this and subsequent journeys. I have noticed, on a former occasion, a large flock of ostriches, which we met in the neighbourhood of Komberg. In that country, the drought and heat sometimes compel these gigantic birds to leave the plains, and then they pursue their course together in large flocks to the heights, where they find themselves more commodiously lodged. At the time of sitting, there are seldom more than four or five seen together, of which only one is a cock, the rest are hens. These hens lay their eggs all together in the same nest, which is nothing more than a round cavity made in the clay, of such a size as to be covered by one of the birds, when sitting upon it. A sort of wall is scraped up round with their feet, against which the eggs in the outermost circle rest. Every egg stands upon its point in the nest, that the greatest possible number may be stowed within the space. When ten or twelve eggs are laid, they begin to sit, the hens taking their turns, and relieving each other during the day; at night the cock alone sits, to guard the eggs against the jackals and wild cats, who will run almost any risk to procure them. Great numbers of these smaller beasts of prey have often been found crushed to death about the nests; a proof that the ostrich does not fight with them, but knows very well how to conquer them at once by her own resistless power; for it is certain, that a stroke of her large foot trampling upon them, is enough to crush any such animal.

Ostriches Of South Africa. They Are So Fleet As Easily To Distance The Swiftest Horse.
"The hens continue to lay during the time they are sitting, and that, not only till the nest is full, which happens when about thirty eggs are laid, but for some time after. The eggs laid after the nest is filled are deposited round about it, and seem designed by nature to satisfy the cravings of the above-mentioned enemies, since they very much prefer the new-laid eggs to those which have been brooded. But they seem also to have a more important designation, that is, to assist in the nourishment of the young birds. These, when first hatched, are as large as a common pullet, and since their tender stomachs cannot digest the hard food eaten by the old ones, the spare eggs serve as their first nourishment. The increase of the ostrich race would be incalculable, had they not so many enemies, by which great numbers of the young are destroyed after they quit the nest.
"The ostrich is a very prudent, wary creature, which is not easily ensnared in the open field, since it sees to a very great distance, and takes to flight upon the least idea of danger. For this reason the quaggas generally attach themselves, as it were instinctively, to a troop of ostriches, and fly with them, without the least idea that they are followed. Xenophon relates, that the army of Cyrus met ostriches and wild asses together, in the plains of Syria.
"The ostriches are particularly careful to conceal, if possible, the places where their nests are made. They never go directly to them, but run round in a circle at a considerable distance before they attempt to approach the spot. On the contrary, they always run directly up to the springs where they drink, and the impressions they make on the ground, in the desolate places they inhabit, are often mistaken for the footsteps of men. The females, in sitting, when they are to relieve each other, either both remove awhile to a distance from the nest, or chan hastily, that any one who might by chance be spying avout, could never see both at once. In the day-time, they occasionally quit the nest entirely, and leave the care of warming the eggs to the sun alone. If at any time they find that the place of their nest is discovered, that either a man or a beast of prey has been at it, and has disturbed the arrangement of the eggs, or taken any away, they immediately destroy the nest themselves, break all the eggs to pieces, and seek out some other spot to make a new one. When the colonist therefore finds a nest, he contents himself with taking one or two of the spare eggs that are lying near, observing carefully to smooth over any footsteps which may have been made, so that they may not be perceived by the birds. Thus visits to the nest may be often repeated, and it may be converted into a storehouse of very pleasant food, where, every two or three days, as many eggs may be procured as are wanted to regale the whole household.
"An ostrich's egg weighs commonly near three pounds, and is considered as equal in its square contents to twenty-four hen's eggs. The yolk has a very pleasant flavour, yet, it must be owned, not the delicacy of a hen's egg. It is so nourishing and so soon satisfies, that no one can eat a great deal at once. Four very hungry persons would be requisite to eat a whole ostrich's egg; and eight Africans, who are used to so much harder living, might make a meal of it. These eggs will keep for a very long time: they are often brought to the Cape Town, where they are sold at the price of half a dollar each.
"In the summer months of July, August, and September, the greatest number of ostriches' nests are to be found; but the feathers, which are always scattered about the nest at the time of sitting, are of very little value. I have, however, at all times of the year, found nests with eggs that have been brooded : the contrasts of the seasons being much less forcible in this part of the world than in Europe, the habits of animals are consequently much less fixed and regular. The ostrich sits from thirty-six to forty days before the young are hatched.
"It is well known that the male alone furnishes the beautiful white feathers which have for so long a time been a favourite ornament in the head-dress of our European ladies. They are purchased from the people who collect them, for as high as three or four shillings each ; they are, however, given at a lower price, in exchange for European wares and clothing. Almost all the colonists upon the borders have a little magazine of these feathers laid by, and when they would make a friendly present to a guest, it is generally an ostrich's feather. Few of them are, however, prepared in such a manner as to be wholly fit for the use of the European dealers. The female ostriches are entirely black, or rather, in their youth, of a very dark gray, but have no white feathers in the tail. In every other respect, the colour excepted, their feathers are as good as those of the males. It is very true, as Mr. Barow says, that small stones are sometimes found in the ostrich's eggs; It is not, however, very common; and, among all that I ever saw opened, I never met with one."
 
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