Yes, there's always that fear that they'll run off closer to season. What it is is that they're expanding their ranges searching for does. Well, that works out for us because we have plenty of does around our hay farm. The fields and thick undergrowth in the woods provide the cover they like, while younger grasses and food plots provide the food they're after. My strategy has always been to try to find where the does have been and try to retain them, since the bucks will come looking for them in those areas prior to and during the rut.
"We are only as strong as we are united, as weak as we are divided." - J.K. Rowling