That are already in their second pen, having thoroughly rotorooted the first one. The beauty of encouraging them to root is that I'll be able to turn their old pens into garden areas. Let them do the tilling, weed eating, root and rock removal.
Both these piglets are mostly feral Hawaiian pigs. There's a tad of domestic, but obviously not much. So their instinct is to be spooky and hyper alert. And smart! They are quick learners, coming when called. They don't like being touched or scratched, but tolerate it as long as there is food in their bowls.
This pen, which is 15' x 15' should last them about 3-4 weeks, I'm guessing. Then I'll have to move the panels and their doghouse to the next location. I'm just assuming that as they grow bigger that they will go through a pen faster each time.