I have had good luck with black oil sunflowers, sparsely planted to allow open dirt, I have also planted wooly croton among the sunflowers, and hope to this year, if I can find seed! Allow for a football field size area per shooter, mow strips about a 10 days to a week before the season to allow the birds to begin using it. Try to pick an area with one or more ponds nearby, within sight featuring open shoreline, and some cottonwoods or dead snags to roost in. Doves like the wide open spaces. Shoot either mornings or afternoons every other day to avoid burning them off. They will leave soon enough anyway, first cold rain, or cold snap will push them out fast, though you may get some northern birds in later, for a day or two at a time. In my area, we usually have birds for about a week at the Sept.1 opener. then again for a day or two at a time through late October,sometimes early November. Last year was a disaster, cold overcast rainy for three days before the opener. Never saw any number of birds at all. So it sure can be hit and miss! When it's good it's memorable.