Note 2897 — BOOK X. THE NATURAL HISTORY OF BIRDS.
John Bostock translation
From the Greek πυγὴ ἀργὴ, “white tail.” Cuvier remarks, that this is copied exactly from Aristotle, except that he says nothing about the whiteness of the tail, which is an interpolation. The feathers as described agree with those of the common eagle, the Falco fulvus, which is strong enough to seize a fawn. As regards its habit, he says, of dwelling on plains, that would agree better with the Jean le blanc of the French, the Falco Gallicus; while the name of pygargus is commonly applied, at the present day, to the great sea-eagle, the Falco albicilla; which frequents lakes and the sea-shore, and therefore corresponds more nearly with the haliætus of Pliny.