they're all congregated at the post burn now BUT in the winter when that big group eats up all the food YOUR deer will come back to your uneaten food.
DO NOT DO A BURN YET!!! maybe a couple tracts in a year or two to keep it fresh, but with that big beacon a ways off from you the deer will be coming from farther than ever once the hungry "foreigners" follow the scent trails of your fat deer in the dead of winter.