In truth, these nomadic hunter cultures didn't actually have special techniques for herd population preservation and number management that was never innovated by European or Eurasian horse nomads, though many people seem to believe they did. Their historical small numbers (and thus small demand), hunting seasons (as opposed to all-years hunting), and using the whole buffalo, every part, was all there was. If they had, in fact, become much more successful, by the general definition of the game, without a European conquest, their population and needs would have eventually overwhelmed the herd populations like European hunting historically did. There was, in fact, no grand, "magical trick," to it beyond that. After all, the ancestors of the Indigenous Western Hemisphere peoples apparently hunted mammoth, mastadons, sabre-toothed tigers, giant armadillos, and other such things right to extinction.