Delivering a blend of local history, environmental issues, education, entertainment, and fresh air, Davenport's River Action concludes its series of 2021 outdoor presentations in the final month of the annual Channel Cat Talks and Riverine Walks, weekly programs that, from August 3 through September 4, will address such topics as early Civil War history, Mississippi River flood levels, the history of Campbell's Island, and iconic musicians Bix Beiderbecke and Louie Bellson.