You must have the discipline to scout and find specific buck trails and entry points before you hunt. Ideally, the feeding area will be situated so that you can observe it from long range. Glass from a high ridge, a distant tree, a farm building, or even the cab of your pickup. If you don't have the luxury of such observation, visit the food source at midday and check entry trails for large tracks and other buck sign. If you find wide, splayed tracks, urine stains that dribble across the snow (does pee in a single spot beneath their hindquarters), or fresh rubs or scrapes, you've found a buck trail.