Delivering a blend of local history, environmental issues, education, entertainment, and fresh air, Davenport's River Action will present a series of outdoor presentations in the second month-plus of the annual Channel Cat Talks and Riverine Walks: weekly programs that, from July 9 through August 3, will address such topics as the music of jazz artists Bix Beiderbecke and Louie Bellson, Nahant Marsh, local lock-and-dam systems, and the majestic Quad City pelican.