For what it's worth, I like this mod :) Thanks to the mod author for making it. I noticed a behavior that may just be a conflict with one of my other mods, but I found a fix so I wanted to leave it here in case anyone else had the same problem.

All of my pen animals were failing to sleep until exhausted, resulting in constant "X has collapsed from exhaustion" messages, very annoying with the many pen animals I have. I had tilled all the soil in their pen though, so I had a hunch that was why.

I dug around a little bit, and in the xml file (check the discussion about changing fertility to find the location), down almost at the very end, either comment out or delete entirely the line that mentions "avoidWander". Removing that, saving the file, and firing the game back up fixed it right away for me.

I'm sure there was probably a good reason for that setting, but in case anyone else had the same problem and wanted a solution, there you are :) Thanks again to the mod author for this helpful mod.