Here's an interesting example, late November, long after a killing frost, I hunted a 160@ old, I mean waist and shoulder high grass, with waterways of brome, tangled so bad it was like walking in waders, finely corralled a group of rosters, 5 got up, one made a mistake, which I dropped. Because I am interested in what they feed on, I opened the crop, and found nothing but freeze dried grasshoppers! This quarter section was literally surrounded by on four sides with corn, milo, and bean stubble, with waste grain all over. My point being that food is almost never a limiting factor, but it is easier to hunt! My thought is lots of perennial plants, like pasture lespedeza, ragweed, common alfalfa, common sunflowers, chufa tubers, buffalo berry, service berry, wild plum. Believe it or not a lot of quail and pheasants lead happy lives with no access to a food plot! Food plots, as well as the 30 foot strips of prairie grass a long a field border, or a strip of milo, are trip traps for game birds, just killing zones to the benefits of predators and hunters alike. I have this idea, I want to hunt where the bird as the advantage, lots of cover, difficult to walk, available food sources, in short they can be anywhere! It takes a sharp hunter with good dogs to succeed, and even the failure provides memories!