X-Factor: Shrinking food sources. Winter-like weather has been common across much of the region for the better part of a month, and deer have been feeding actively in response. Consequently, food sources are beginning to dwindle, which means those that remain will become very, very important for deer-- and not just the ones that have lived in the area for months. Right now is when whitetails from all over will congregate on one hot food source—a farm field full of waste grain, an oak ridge peppered with acorns, a fresh clearcut—and remain. The buck in the photo above is an example of what I call a "floater buck," which is one that moves in during late fall and settles on a popular food source. Find bucks close to a bunch of does feeding regularly in one spot and you're looking at some stellar post-rut action. And if you don't have good deer food where you hunt, keep scouting until you find it.