Volume 12, Number 4 November 2006   Just Ducky Field ID by Bonnie Chasteen Duck Counts by Joan McKee Each fall, flocks of ducks fill the sky as they fly south for the winter. Mussel Power adapted by Joan McKee from Missouri's Freshwater Mussels Silent aquatic creatures are on the front line in the battle to keep Missouri's streams clean. The Back Page Invasive Species Alert! Listen to "The Back Page with Oakley Nutkins" (856 KB)