In pastoral districts the puma is very destructive to the larger
domestic animals, and has an extraordinary fondness for horseflesh. This
was first noticed by Molina, whose _Natural History of Chili_ was
written a century and a half ago. In Patagonia I heard on all sides that
it was extremely difficult to breed horses, as the colts were mostly
killed by the pumas. A native told me that on one occasion, while
driving his horses home through the thicket, a puma sprang out of the
bushes on to a colt following behind the troop, killing it before his
eyes and not more than six yards from his horse's head. In this
instance, my informant said, the puma alighted directly on the colt's
back, with one fore foot grasping its bosom, while with the other it
seized the head, and, giving it a violent wrench, dislocated the neck.
The colt fell to the earth as if shot, and he affirmed that it was dead
before it touched the ground.

Naturalists have thought it strange that the horse, once common
throughout America, should have become extinct over a continent
apparently so well suited to it and where it now multiplies so greatly.
As a fact wherever pumas abound the wild horse of the present time,
introduced from Europe, can hardly maintain its existence. Formerly in
many places horses ran wild and multiplied to an amazing extent, but
this happened, I believe, only in districts where the puma was scarce or
had already been driven out by man. My own experience is that on the
desert pampas wild horses are exceedingly scarce, and from all accounts
it is the same throughout Patagonia.

Next to horseflesh, sheep is preferred, and where the puma can come at a
flock, he will not trouble himself to attack horned cattle. In Patagonia
especially I found this to be the case. I resided for some time at an
estancia close to the town of El Carmen, on the Rio Negro, which during