RE: Hunting From a dirt bike?
Well he we go again - if someone doesn't follow the practices that I believe in, it either won't work out or it's silly. Whatever.
A dirt bike will get you into tighter areas than an ATV, that's for sure. An ATV will go thru mud and water better, that's for sure. As far as how close you want to go to your actual hunt area would be your call. I have had deer walk within feet of ATV's on our farm, come in to me and get shot. There IS NOT alot of machines around the property except ag equipment (tractors).
As far as getting deer out of the area with a dirtbike, you could just slowly pull them back down with a rope.