A History of Inventions, Discoveries, and Origins (Vol. 1&2). Johann Beckmann
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СКАЧАТЬ Grecian authors above-quoted call the rapacious birds used for pursuing game ἱέρακες; and Pliny calls them accipitres. It would be difficult, perhaps impossible, to distinguish with sufficient accuracy all the species of these birds to which the ancients gave different names. This genus is numerous, and the species often differ so little from each other, that it is not easy to establish their characterizing marks. Besides, they for the most part change their colour, and often their whole appearance, according to their age or the season of the year; so that these characters become very uncertain. It appears that on this account the ancients often divided one species into two or more, and imagined that many species passed one into the other, or that new species were produced by the mixture of different breeds. It seems however certain that the ancients divided those birds of prey which fly abroad in the day-time, into three species: ἀετὸς aquila; γὺπς vultur; and ἱέραξ accipiter. The first and last belong to that genus which Linnæus calls falco, and are the large species of it. The vultures are the Ger-falcons, which are sufficiently distinguished by their bald head and neck.

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