The Missouri Department of Conservation (MDC) is the best source for population numbers of any wildlife species. Max Alleger is an appropriate MDC person to field this query. His email appears above, as I've copied him on this response.
On Apr 11, 2016, at 4:08 PM, Christine Kline wrote:
Can anyone give me an accurate number of Prairie Chickens in the State of Missouri? We are doing research for Wings Over Weston. We have found that there were less than 200 in 2009 and there were more than that in 2012, but we canít find any numbers for 2015 or even 2014.