It makes sense and was likely made by the native North Americans before they began to obtain rifles from westerners.
Such a trap, and then herding the buffalo into it would make a lot of sense. Modern folks cannot put it into their modern context because that hpyocrisy would ignore how they obtain meat for THEIR diets. Ever seen a beef slaughterhouse or a farm raising calves for veal???
There was an article once on FR about the annual whale slaughter in the Faroe Islands. Even FReepers couldn’t understand why the entire island participates in the old and very bloody ritual.
They have no concept of not getting everything from the grocery store.
Faroe Islanders live a somewhat subsistence lifestyle and whale meat and oil is critical to them.
My daughter has a friend who lives there. It seems like an absolutely beautiful area.