I'm merely an opportunistic quail hunter of the past, but I will definitely remember two distinct covey locations forever.
One was on top of a "mountain" in Shackelford county. Largest covey seen in my lifetime, I thought there must've been near 50 birds when they rose(youthful overestimation, I'm sure). Your signature quote by Gene Hill fits this scene perfectly, as their was a rainbow one morning that ended so close to the covey I could've touched it.
The other is just a few hundred yards from our home. It was next to a brush pile on a gentle downward slope towards a creek. There were a dozen or so birds, and I would shoot one or two every year for many years. Every once in a while, I would see a couple out on the gravel county road and would scramble for a photo. I remember one rooster I hit that flew halfway back to the house. Watched him land under a huge cedar tree & found him exactly where I saw him touch down. There is now a house sitting in the exact spot the covey called home.