Yea the young ones stick close to home till they get older after that they are off exploring or chilling somewhere but they do return home to check in, if i do not see mine while i am outside i make sure i check on them, but honestly i have developed a sixth sence with them, i get a feeling they are up to something and sure enough they are somewhere i do not want them, usually across the drive at my daughters home, she is harldly ever there but i do not allow my birds over there, they know better to cause when they see me they stop dead in their tracks and look at me, usually they are just after something like the new kitten that showed up at her place.It sounds like whatever you are doing works for you, acmetnt, but most peapeople here will tell you that it's just not that easy to control where your peas go.
It certainly takes more than a little fence to keep them from straying.
Zazouse is an excellent example - as she says, she has 100 acres (and obviously keeps the peas well fed!) and still has to keep an eye on her gang all the time to keep them from getting in trouble (a devoted peamom!).
I have had to leave my peas for a couple weeks at a time with my dogs in charge when my DH was in the hospital, i came home three day to check on everything and all when well so as long as my dogs are in charge while i am gone i can rest easy everyone will be fine.