So as both forager and coyote cloak both say on a critical success they feed twice as many people. Do they combined feed 4 times as many people or is it a stacking thing where it feeds 3 times as many people.
Since the two effects multiply the same number (number of people fed), I would think the that the multiplier rule from p444 would be applicable. Thus, I believe that it is a stacking thing where it feeds 3 times as many people