That's what roots and berries are for. Brains, organs and livers will do for the fats as well. His choice of a shotgun was idiotic though.
Yep on sources of fat etc
Disagree on the shotgun comment.
.... Slugs / 00 Buck for safety an moose / deer size game an #9 for birds’n bunnies. .
I would have taken a double barrel 12 ga due TWO firing pins vs ONE in pump or semi.
Also would have packed a .22 target grade revolver for game gathering.
But that’s my opinion / experience in the boonies.....:o)
Stay Safe !!!