Allow me to get simple- I'm not being sarcastic at all, mostly.
Are you hunting for birds or hunting for cover? I prefer to hunt cover that has lots of birds in it. So I go to the part of the state with the most birds, not the perfect cover. See, all the non-hunters have been nice enough to install mile after mile of small grass habitat with defined edges right next to food sources. They call them ditches and who knows what they use them for but they are specialized solo hunting grounds so that appears to be their primary purpose. A possible secondary purpose is putting down gravel for the birds to pick at but they put way too much of that down so that's unlikely. Not hard to find them as any map I've looked at marks these hunting spots with black lines. They put them everywhere- my favorites are the ones beside bajillion dollar hunting preserves. You would think with all that money they would pave the public roads around their land and put private gravel roads out of shooting distance but nope- all their birds come out to pick gravel right in the open, free ditches. I always make it to opening weekend as there seems to be the largest volunteer effort to flush birds out of massive crops and cover fields and get them to me in the ditch so I don't have to work so hard.
I'm normally without a dog but more often have one person blocking, which helps, if they can shoot straight. I end up walking ditches in areas I've seen birds while scouting in the morning or last hour of hunting. About 3/4 of the birds are shot way far away from the blocker so I know I would have got them up out of the ditch if I was on my own. Middle of the day I may find a "cover" public area and since I've gone to an area that is lousy with birds, I may bump into a few dummies in there by accident, regardless of how big it is. But that's more of a diversionary tactic for me as I keep hitting the same ditches where I see birds day after day. There are hundreds of birds in every field I never see so they take turns at coming out for a tune up on survival skills. The dog friendly cover that most of the hunters on this site are looking for get hit every hour so you here them talk of letting a spot cool down for week. Really I think they are just waiting for everyone else to give up and let the birds come back in. Nobody else is hunting ditches hardly ever so I have mile after mile all to myself.
That's what's kept my filled out every trip for decades.