William T. Hornaday,
Our Vanishing Wild Life: Its Extermination and Preservation
“ If something is by chance left over, it goes to satisfy the hunger of the humbler creatures of prey. In a state of nature, where wild creatures prey upon wild creatures, such a thing as wanton, wholesale and utterly wasteful slaughter is almost unknown! When the wild mink, weasel and skunk suddenly finds himself in the midst of scores of man's confined and helpless domestic fowls, or his caged gulls in a zoological park, an unusual criminal passion to murder for the joy of killing sometimes seizes the wild animal, and great slaughter is the result. ”
