This is a short but effective list of plants used for habitat manipulation. Food (fruit), browse, and cover are all provided by the species listed here.
Foodplots are great, but what do the deer and birds eat in the middle of winter? Planting highly desired species to improve your properties carrying capacity when the animals need it most is one of the best things you can do for your property.
And don't forget about the hybrids for more cover, a screen, or bedding areas.