The best quail habitat on the planet is an osage hedge row around a grain field. Southern Nebraska, Kansas, Missouri, some of southern Iowa and quite a bit of Illinois used to be prime quail habitat with hedges around their fields. Predators, including humans could not push through those thorny tangles to get at the quail and they thrived. However, modern farmers have removed most of the hedges to enable them to cultivate right up to the fence. Not only are there fewer quail, but there's more wind erosion without the protection of those hedges. There's also a heck of a lot less bow wood.
Quail may be small, but they make up for it in taste.
I've seen one pair on the lease down here Cip. With all the fire ants I don't know how they could survive. I don't know how the turkeys successfully nest either.
George