Closest oppurtuity is Bolton Wildlife Area west of Topeka.
Bolton is managed under a patch-burn grazing regime for the benefit of Prairie Chickens and other grassland wildlife. Prairie chickens can regualrly be found using the wildlife area however due to it's size,shape, and general location, birds are frequently off the area and can be pushed off relatively easily. Some other September WIHA in WB, JA, and PT offer limited oppurtuities.
Densities and oppurtunites are far better once as you move west into North central kansas in the smoky hills. Particularly once you get west of Salina.