Faithwalker

I'm not sure if they heal, but I hit one of my boars with a spear while I was trying to kill a drifter that got in the pen with them, and that was a long time ago and he hasn't died. The boar wasn't exactly happy with me, though.

I believe you would have to move him away from the other rooster. All my older roosters kill newly "minted" roosters as soon as they grow up from chicks. I often find dead roosters in my chicken run.

Why do that, though? Some people don't like to build. Pressuring them to build isn't going to make them happy when what they really want to be doing is hunting or fighting or exploring the map. As it is, the game lets you build if that's what makes you happy, or you can just live in an easy to make house if that ticks the box for you. The current system sounds like a way to satisfy more player types.