Thanks for your comments and wish Virgil and your dogs the best of luck at the Colorado and beyond.
Arnett is certainly an unusual situation. Here is a venue that was "invaded" by shinnery oaks some 20-25 years ago and has become a place where wild bobwhites have a "refuge" of sorts. Tough spot and when a freak 100 year snow event occurred last spring, the bobwhites seem to have flourished! Count that as a benefit of that mean old cover - it apparently provided food and protection in the worst of conditions.
Quail and most game need a variety of habitat. Man has broken up the prairie and everywhere else into neat pieces with much of it monoculture crops, cool season grasses or "re-established" warm season grasses that must not be exactly the same. The old patchwork farming practices with mules and later two cylinder John Deere's left enough stuff besides the plowed areas to really give quail what they needed. Now every aspect of farming is so efficient that little margin is left for our poor birds. Throw in some bad weather, new diseases or an unchecked predator population and it is good bye game birds in a landscape too predictable for the ground birds.
As Pogo used to quote, "We have met the enemy as he is us".