Wisconsin statewide ruffed grouse drumming activity increased 41% between 2018 and 2019, based on the roadside survey to monitor breeding grouse activity. Changes in indices to breeding grouse populations varied by region, and the statewide mean number of drums per stop was different (P= <.0001) from 2018 to 2019. Drummer densities on the Sandhill Wildlife Area in Wood County showed a decrease of 13%.
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