How long has the NWSG been planted?In all my CRP program planting the NRCS has gone away from the idea of clean native grass with no weeds as they found out that young birds and animals can't travel because it is so thick.You will either start burning the third year or strip discing to encourage the growth of forbs and weeds.I am also in Kansas,just south a little ways.I have around 30 ares in CP33,some wetland and about 20 acres of riparian buffer zones.On average look at 10 % in food and the rest in cover.Check out qdma.com lots of great info