Merkem got it.
When I first started hunting them I would join the crowds and help surround a sunflower, safflower, or milo field. Always fun... but I never got more than 5-6 normally more like 3-4. With so many people I felt lucky if they got to me, normally they just get cut down and then the few stragglers alter their flight paths as all the knuckle heads empty their guns. But what can I say it's what got me into hunting when I was young.
Now, after much scouting I have found a nice oak grove that the doves roost in, not far from a lake where they go for water, pretty sure they get there food by the water. Anyhow I have found there flight path (a "highway" through the trees) and just sit and wait for them to go to and from their resting spot and their feeding/watering hole. not nearly as much competition = more doves.
Anyhow I would suggest you drive around look for doves then find out where they eat, sleep, and drink. Good luck
"At times like these it's best to remember that there have always been times like these."