Frequently, the limiting factor with quail is brood-rearing cover. I have an article titled the Rainey Farm where a farmer just dropped his disk in the nesting cover and drove around like a drunk making irregular strips through the cover. I believe in 4 years he went from 16 coveys to 64. That indicates just how important it is to know what the limiting factor is for your place. Significant improvements can often be gained just by addressing your limiting factor. I don't know if you've been to my wildlife area's website, but there are several good videos (other than having to look at my mug) there that address conditions and management for quail. The agency website is ksoutdoors.com. It's a bit of a journey to the Byron Walker Wildlife Area page, but go to: hunting, where to hunt, public land, region 4, and Byron Walker. Good Hunting!