= Solution
Under the intended positive rewards $0<h<d$, a hunter at the all-hare <strategy profile> receives $h$. A unilateral switch to deer leaves only one participant. Since the integer threshold satisfies $k>n/2$ with $n\geq3$, we have $k\geq2$, so that deer hunt fails and pays zero. Thus no player can gain by switching, and \b[the all-hare profile is a <Nash equilibrium>]. At $h=0$ it remains an equilibrium through indifference; negative $h$ would invalidate the claim.
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