Hunting prairie chickens in Minnesota is totally different than hunting them in the Sandhills. In Minnesota a hunter chooses a zone which is around 20 miles by 20 miles. With-in that zone is typically just a few public hunting areas. So the strategy there is just walk the public till you find some chickens.
In the Sandhills a hunter has to know the ways of the prairie chicken because there is likely habitat in all directions.
I had a gap in my work schedule the first week of September so I thought I’d head for the Sandhills for a combo dove, prairie grouse hunt. We had a tough time finding smaller family groups of prairie grouse. If we found one, we found 20 or more. I think it was due to a bad hatch and the adults just formed big groups. So the dogs were having trouble locking down solid points.
Caytee my young at the time wirehair and I were walking a pasture next to an ag field. I could tell she was catching scent. But not enough to point. After so many wild flushes prior to this point, I commanded here to whoa. I walked a big loop and walked in from the side of where I suspected the birds would flush. It was a huge flush of chickens at the edge of range. I swung on a bird and folded it, then swung on another but did not shoot as it was already too far.

Nice pic and good on you and Caytee! Be careful out there, the sandhills can really grow on you. Your analogy of just working all cover available to you when limited, and having to identify the best cover in a vast area is spot on.