Only that kind of pie[181] which feeds upon acorns can be taught to speak; and among these, those which have five toes on each foot[182] can be taught with the greatest facility; but even in their case only during the first two years of their life. The magpie has a broad tongue, as do all the birds that can imitate the human voice; although some individuals of almost every kind have the faculty of doing so.

Agrippina, the wife of Claudius Cæsar, had a thrush that could imitate human speech, a thing that was never known before. At the moment that I am writing this, the young Cæsars[183] have a starling and some nightingales that are being taught to talk in Greek and Latin; besides which, they are studying their task the whole day, continually repeating the new words that they have learnt, and giving utterance to phrases of considerable length. Birds are taught to talk in a retired spot, where no other voice can be heard, so as to interfere with their lesson; a person sits by them, and continually repeats the words he wishes them to learn, while at the same time he encourages them by giving them food.

Let us do justice to the raven, whose merits have been attested not only by the kindlier sentiments of the Roman people, but also by the strong expression of their indignation. In the reign of Tiberius, one of a brood of ravens that had bred on the top of the temple of Castor, happened to fly into a shoemaker’s shop that stood opposite: upon which, from a feeling of religious veneration, it was looked upon as doubly recommended by the owner of the place. The bird, having been taught to speak at an early age, used every morning to fly to the Rostra, which look towards the Forum; here, addressing each by his name, it would salute Tiberius, and then the Cæsars[184] Germanicus and Drusus, after which it would proceed to greet the Roman populace as they passed, and then return to the shop: for several years it was remarkable for the constancy of its attendance. The owner of another shoemaker’s shop in the neighborhood, in a sudden fit of anger killed the bird, enraged, as he would have had it appear, because it had soiled some shoes of his. Upon this, such rage was manifested by the multitude, that he was at once driven from that part of the city, and soon after put to death. The funeral, too, of the bird was celebrated with almost endless obsequies; the body was placed upon a litter carried upon the shoulders of two Æthiopians, preceded by a piper, and borne to the pile with garlands of every size and description. The pile was erected on the right-hand side of the Appian Way, at the second milestone from the City, in the field generally known as the “field of Rediculus.”[185] Thus did the rare talent of a bird appear a sufficient ground to the Roman people for honoring it with funeral obsequies, as well as for inflicting punishment on a Roman citizen. No such crowds ever escorted the funeral of any one out of the whole number of its distinguished men.

At the present day, there is in the city of Rome a crow which belongs to a Roman of equestrian rank, and was brought from Bætica. It is remarkable for its color, which is of the deepest black, and is able to pronounce several connected words, while repeatedly learning fresh ones. Recently, too, there has been a story told about Craterus of Erizena in Asia, who was in the habit of hunting with the assistance of ravens, and used to carry them into the woods, perched on the tuft of his helmet and on his shoulders. The birds used to keep on the watch for game, and raise it; and by training he had brought this art to such a pitch of perfection, that even the wild ravens would attend him in a similar manner when he went out. Some authors have thought the following circumstance deserving of remembrance:—A crow that was thirsty was seen heaping stones into the urn on a monument, in which there was some rain-water which it could not reach: by thus accumulating the stones, it raised the level of the water till it came within its reach.

I must not pass by the birds of Diomedes in silence. Juba calls them “cataractæ,” and says that they have teeth and eyes of a fiery color, while the rest of the body is white: they always have two chiefs, the one to lead the main body, the other to take charge of the rear, they excavate holes with their bills, and then cover them with hurdles, which they cover again with the earth that has been thus thrown up; in these places they hatch their young; each of these holes has two outlets—one of them looking towards the east, by which they go forth to feed, returning by the one which looks towards the west. In one only spot throughout the whole earth are these birds to be seen—in the island which is famous for the tomb and shrine of Diomedes, lying over against the coast of Apulia: they bear a strong resemblance to the coot. When strangers who are barbarians arrive on that island, they pursue them with loud and clamorous cries, and only show courtesy to Greeks by birth; seeming thereby, with a wonderful discernment, to pay respect to them as the fellow-countrymen of Diomedes. Every day they fill their throats, and cover their feathers, with water, and so wash and purify the temple there. From this circumstance arises the fable that the companions of Diomedes were metamorphosed into these birds.

We ought not to omit, while we are speaking of instincts, that among birds the swallow[186] is quite incapable of being taught, and among land animals the mouse; while on the other hand, the elephant does what it is ordered, the lion submits to the yoke, and the sea-calf and many kinds of fishes are capable of being tamed.

Birds drink by suction; those which have a long neck taking their drink in a succession of draughts, and throwing the head back, as though they were pouring the water down the throat. The porphyrio is the only bird that seems to bite at the water as it drinks. The same bird has also other peculiarities of its own; for it will every now and then dip its food in the water, and then lift it with its foot to its bill, using it as a hand. Those that are the most esteemed are found in Commagene. They have beaks and very long red legs.

KING PENGUIN.—Aptenodytes Pennantii.

All the heavy birds are frugivorous; while those with a higher flight feed upon flesh only. Among the aquatic birds, the divers are in the habit of devouring what the other birds have disgorged.