Hunting pressure plays big roll, yet would say drought plays bigger roll.
Hogs dont have sweat glands & need water ta cool down, specialy in tripple didget. Also gives relief from ticks, fleas, chiggers, & such.
Been few years back, OSBWMA, usualy has water standing. The slew on east side bye N boundy was dried up. Very few puddles of water. Hogs followed the small stream, that year was seeing several small sounders at cams ruffly 7-8 miles as crow flies. Water tis key ingrediant, specaial in tripple didget.
As they say, they'll be back, & yes ya can keep em under control. Some areas tis worse than others. Leases been on with little water, seen no hogs nor sign. Best wishes.