Marion County Naturalist Marla Mertz encourages bird enthusiasts to join the Des Moines Audubon Society members this weekend for a bird watching field trip in Runnells. The group will travel to the Overlook at the Runnells Wildlife Area on Saturday to look for waterfowl and other spring migrants. Participants are encouraged to bring binoculars and a spotting scope if possible and dress for the weather. All levels of bird watchers are encouraged to attend. The event will take place at the Runnells Overlook, located southeast of Runnells on Highway 316 at 8:45am Saturday. For more information contact trip leader Dennis Thompson at 515-0254-0837.