Telemetry research across the country shows that as a buck ages, his home range (the place where he spends 90 percent of his time) tends to shrink. The latest studies in Louisiana, Maryland, and Pennsylvania put the average adult buck’s home range at between 269 and 559 acres, far smaller than the long-accepted square mile. A truly old buck’s range will be smaller still. This, combined with their tighter core areas (see next page), makes superbucks tough to locate. But there’s good news: Once you do find one, you can (carefully) stay on him, because he’s not going far.