The cuckoo seems to be but another form of the hawk,[2929] which at a certain season of the year changes its shape; it being the fact that during this period no other hawks are to be seen, except, perhaps, for a few days only; the cuckoo, too, itself is only seen for a short period in the summer, and does not make its appearance after. It is the only one among the hawks that has not hooked talons; neither is it like the rest of them in the head, or, indeed, in any other respect, except the colour only, while in the beak it bears a stronger resemblance to the pigeon. In addition to this, it is devoured by the hawk, if they chance at any time to meet; this being the only one among the whole race of birds that is preyed upon by those of its own kind. It changes its voice also with its appearance, comes out in the spring, and goes into retirement at the rising of the Dog-star. It always lays its eggs in the nest of another bird, and that of the ring-dove[2930] more especially,—mostly a single egg, a thing that is the case with no other bird; sometimes however, but very rarely, it is known to lay two. It is supposed, that the reason for its thus substituting its young ones, is the fact that it is aware[2931] how greatly it is hated by all the other birds; for even the very smallest of them will attack it. Hence it is, that it thinks its own race will stand no chance of being perpetuated unless it contrives to deceive them, and for this reason builds no nest of its own: and besides this, it is a very timid animal. In the meantime, the female bird, sitting on her nest, is rearing a supposititious and spurious progeny; while the young cuckoo, which is naturally craving and greedy, snatches away all the food from the other young ones, and by so doing grows plump and sleek, and quite gains the affections of his foster-mother; who takes a great pleasure in his fine appearance, and is quite surprised that she has become the mother of so handsome an offspring. In comparison with him, she discards her own young as so many strangers, until at last, when the young cuckoo is now able to take the wing, he finishes by devouring[2932] her. For sweetness of the flesh, there is not a bird in existence to be compared to the cuckoo at this season.
CHAP. 12. (10.)—THE KITE.
The kite, which belongs to the same genus, is distinguished from the rest of the hawks by its larger size. It has been remarked of this bird, extremely ravenous as it is, and always craving, that it has never been known to seize any food either from among funereal oblations or from the altar of Jupiter at Olympia; nor yet, in fact, does it ever seize any of the consecrated viands from the hands of those who are carrying them; except where some misfortune is presaged for the town that is offering the sacrifice. These birds seem to have taught man the art of steering, from the motion of the tail, Nature pointing out by their movements in the air the method required for navigating the deep. Kites also disappear during the winter months, but do not take their departure before the swallow. It is said, also, that after the summer solstice they are troubled with the gout.
CHAP. 13. (11.)—THE CLASSIFICATION OF BIRDS.
The first distinctive characteristic among birds is that which bears reference more especially to their feet: they have either hooked talons, or else toes, or else, again, they belong to the web-footed class, geese for instance, and most of the aquatic birds. Those which have hooked talons feed, for the most part, upon nothing but flesh.
CHAP. 14. (12.)—CROWS. BIRDS OF ILL OMEN. AT WHAT SEASONS THEY ARE NOT INAUSPICIOUS.
Crows, again, have another kind of food. Nuts being too hard for their beak to break, the crow flies to a great height, and then lets them fall again and again upon the stones or tiles beneath, until at last the shell is cracked, after which the bird is able to open them. This is a bird with a very ill-omened garrulity, though it has been highly praised by some.[2933] It is observed, that from the rising of the constellation Arcturus until the arrival of the swallow, it is but rarely to be seen about the sacred groves and temples of Minerva; in some places, indeed, not at all, Athens for instance.[2934] In addition to these facts, it is the only one that continues to feed its young for some time after they have begun to fly. The crow is most inauspicious at the time of incubation, or, in other words, just after the summer solstice.
CHAP. 15.—THE RAVEN.
All the other birds of the same kind drive their young ones from their nest, and compel them to fly; the raven, for instance, which not only feeds on flesh, but even drives its young, when able to fly, to a still greater distance. Hence it is that in small hamlets there are never more than two[2935] pairs to be found; and in the neighbourhood of Crannon, in Thessaly, never more than one, the parents always quitting the spot to give place to their offspring. There have been some differences observed between this and the bird last mentioned. Ravens breed before the summer solstice, and continue in bad health for sixty days—being afflicted with a continual thirst more particularly—before the ripening of the fig in autumn; while, on the other hand, the crow is attacked by disease after that period. The raven lays, at most, but five eggs. It is a vulgar belief, that they couple, or else lay, by means of the beak; and that, consequently, if a pregnant woman happens to eat a raven’s egg, she will be delivered by the mouth. It is also believed, that if the eggs are even so much as brought beneath the roof, a difficult labour will be the consequence. Aristotle denies it, and assures us in all good faith that there is no more truth in this than in the same story about the ibis in Egypt; he says that it is nothing else but that same sort of billing that is so often seen in pigeons.[2936] Ravens are the only birds that seem to have any comprehension of the meaning of their auspices; for when the guests of Medus[2937] were assassinated, they all took their departure from Peloponnesus and the region of Attica. They are of the very worst omen when they swallow their voice, as if they were being choked.