Wisconsin Ruffed Grouse West-Nile Virus Testing Results MADISON, Wis. – The Wisconsin Department of Natural Resources (DNR) released test results from the third year of the ruffed grouse West Nile virus surveillance project. The collaborative multi-year study explores ruffed grouse West Nile virus exposure and infection in the western Great Lakes region. The study also aims to identify future research needs in Wisconsin, including a potential survival study investigating sources of mortality. Although the DNR did not distribute new testing kits in 2020 due to the ongoing COVID-19 pandemic, Wisconsin hunters with leftover kits from previous years’ sampling efforts submitted 36 birds for testing.