schlich,

you could plant some cover, but a cheaper way to do it yourself would be to cut some trees. You clould selectively cut a few to thin an area up or you could make a clear cut of small to medium size. THis allows sunlight to enter and natural growth will occur. Natural woody browse will grow, and the area will thicken up. In addition the cut trees will be good cover and the tree tops will be a food source for a while. If it were me i may consider leaving oaks alone unless you have alot in the area. JMO

Good luck