Very simple and very straight forward. There's no idle "reverence for nature". Nature provides. Period.
Bison were and still are multipurpose animals. Not a dang thing was ever wasted.
Any shallow research into the ways and means of the plains native peoples will explain that.
Try mesolithing living.
Get your sweet buns over here. I can stand you up in front of the meanest, nastiest herbivore on earth.
A whole freakin' herd of them. I expect you to kill and butcher one of them, a 2 yr old (can you pick that out?),
without the rest of them coming over to meet you and greet you and stomp and gore you to death.
I'll be in the kitchen. The most surprising, cut-it-with-a-fork-tender meat that you have ever had.
You have to learn to cook differently. What white-faced range maggots can never taste like.
Per 100g cooked meat, beef is 11g, chicken is 8g, bison is 2.
Actually, the real truth of the matter is that you have 6 weeks to do what I want doing.