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Fewer and fewer Americans are taking up hunting every year, prompting some advocates to express concern for the future of the pastime, as well as the wildlife and nature conservation that hunters’ fees support, writes Jonathan Berr.

Hunting has become a curiosity rather than a necessity for many people, says Mike Busch.

When he tells people that for more than a decade he’s only eaten meat from animals he’s hunted, the New Jersey resident is peppered with questions from people who think that his chosen diet is “cool” and from those who wonder what he has against supermarkets.

“It was a whole different world when I grew up hunting,” Busch tells the BBC. The 52-year-old activist…