I’ve been watching my garden camera & for the last few weeks it’s very obvious that water is in short supply for our garden friends, not just hogs but birds & other visitors. We’ve gone from torrential rain & flooding to weeks of very dry weather, making worms difficult for hogs to get at as the ground is very dry.
The time spent at the ceramic cat dish (less likely to be toppled over) I fill with clean water each night for the hogs is increasing, the food I put out is dry but even so I’ve never seen them drinking for such extended periods as they are now.
Whatever the reason I think it’s worth making the point to put clean water out each night whether you feed them or not as there are few natural sources of water, round here there are probably none.
Don’t forget the birds either & put a shallow container of water out for them every day, the bathing scenes you’ll get as a result make it well worth the effort!