Like most animals, deer eat whatever holds the most nutritional value, in their area, at a given time. Depends on what you have where you live. In the woods where I live, when we have a good acorn crop, the pods usually go uneaten. When the corn (or beans) is standing late into the season, good luck seeing them hanging out in the woods. Around here, they'll just bed down in the corn and beans. The most activity you see is during the pre-rut and rut when the bucks are looking for does or the scrape lines are getting worked over. If you have a green field, you'll see them there at some point every evening. So I guess I'm saying you have to hunt the current need of the animal.