Chapman and Buck, Wild Spain, 1893, p. 206. The Black Vulture, however, may possibly be meant, as the Egyptian Vulture does not seem to break bones.
Lydekker, P.Z.S. 1890, p. 404.
Id. Cat. Fossil Birds Brit. Mus. 1891, p. 29.
Pterylography (Ray Soc.) ed. Sclater, 1867, p. 37.
Falconry is too large a subject to be considered here; but the reader may be referred to the works of Salvin and Brodrick, Freeman and Salvin, and others.