One other thing to strongly consider is make sure that you have a watering hole or two right near your plot. That will keep them around much more during the summer months if there isn't a good water source in the vicinity. My neighbor showed me the one he dug (not big...maybe 5-6' in diameter) about 15-20 yards from his plot and i couldn't believe all the tracks that there was. there is a small creek that runs through the back of our property, but that usually dries up mid to late June. Having water close by their food source really increased the activity.