The only thing I've seen as any kind of real "rule" is that 1.5 yr olds tend to disperse right before or at the start of the rut. Meaning, they have been living where they were born, but a lot of them just up and wander off at that time of the year and find a new "home".
This seems to mirror what I observe, in that I stop seeing young bucks I saw a lot early on, and other ones start appearing. Sometimes....some don't do this, but it seems like a lot do.
I shot a 5.5 yr old buck a while back, and he lived in one thorn thicket of about 20 acres and was seen constantly all right around that area, because he was essentially unbothered in there. He got kicked around by hunting pressure whenever he left it, and we saw him get run out of thickets by hunters (who often had no idea what they'd just pushed out, lol). I killed him near the tail end of rifle season on a mid-day two-man push my dad and I put on in his bedding area. He had no idea I was there, and he had had about 15 does with him. He never wanted to leave that thicket, and when I shot him, he appeared to me to be looking for a way to circle around my father (doing the push) and get back to where he'd been pushed out of. He was in there through the whole rut....he may have wandered at times, but he was living there from the summer until I killed him in December.
I've killed a few 2.5 yr olds that we never saw once before I killed them.