"The concept of territory proves to be as old as the science of ornithology, since Aristotle was the first writer to mention it. This was pointed out by Lack (Condor, 46, 1944:108) who, however, did not follow the subsequent history of these observations. ... It was Aristotle, then, who declared that eagles partition out the land according to their needs for food, and this statement was incorporated into the books of Pliny, (in regard to ), Albertus Magnus (transferred to vultures), , , and Buffon."