MANITOWOC, Wis. (AP) — Wisconsin's water-diving ducks are getting some help from residents who became concerned after learning ice was keeping ducks from gathering food this winter. Animal rehabilitation clinics are caring for a larger-than-usual number of malnourished ducks this winter. Some ducks don't migrate in winter and dive into water in search of food. Conservationist Tom Kocourek says when he heard frozen waterways were preventing the birds from finding food, he decided to do something about it. The Two Rivers man called a marine contracting and engineering firm, which used a trawler to break up ice in Manitowoc and Two Rivers harbors. Days after ducks had been spotted walking through streets in search of anything to eat, they were in the water, diving for food again.