6. They do not hunt their prey near their nests, but at a considerable distance; and when they have hunted and taken anything, they lay it down and do not take it away at once, but carry it away when they have tried its weight. They do not capture hares at once, but let them escape to the plain. They do not descend to the plain at once, but with large though gradually decreasing circles. They do this in order that they may not be ensnared. They settle upon eminences, because they cannot rise easily from the ground. They fly aloft, that they may see the greater extent of country. For this cause men say that the eagle is the only divine bird. 7. All birds with crooked claws avoid sitting upon rocks, for its hardness is injurious to their claws. The eagle hunts fawns, hares, and other animals which it is able to conquer. It is a long-lived bird. This is plain from the long continuance of their nests in the same place. 8. In Scythia there is a kind of bird as large as a bustard, which produces two young ones. It does not sit upon its eggs, but hides them in the skin of a hare or fox. It watches them from a neighbouring tree all the while it is not engaged in hunting its prey. And if anyone approaches them, it fights and strikes with its wings, like the eagle. CHAPTER XXIII. 1. The owl and nycticorax, and the other birds which see imperfectly by daylight, procure their food by hunting in the night. They do not this all the night, but in twilight and at early dawn. They hunt mice, and lizards, and beetles, and such other small animals. 2. The bird called asprey produces many young, is of a good habit of body, diligent in search of food, and gentle; and feeds both its own young and those of the eagle: for when the eagle turns out its young, the phene takes them up and feeds them; for the eagle ejects them before the proper time, when they still require feeding, and are unable to fly. The eagle appears to eject its young from the nest from envy; for it is an envious and hungry bird, and not quick in seizing its prey. It captures large creatures when it can. When its young have grown, it envies them, for they are good for food, and tears them with its claws. The young also fight in the nest for particular places, and for the food. The parent then turns them out of the nest and strikes them. When they are turned out they begin to scream, and the phene comes and takes them up. The phene is dim-sighted, and its eyes are imperfect.