The Burgess Animal Book For Children in "Some Big And Little Cat Cousins"

But as the country became settled by man, Puma was driven out, and now his home is chiefly in the great mountains of the Far West.

"Being so big, he must have much food. Instead of depending for his living on small animals and birds, Puma hunts the large animals. He is so big and so strong that he can kill Lightfoot the Deer without trouble, and there is no one Lightfoot dreads more than Puma.