March 2007 – was a cold winter and the harsh weather compromised food sources and the health of many animals. During bitter cold weather, when many water sources are frozen, ducks are attracted to any other open water, including pools at waste-water treatment plants. This spelled trouble last year for the 480 ducks (mostly Northern Shovelers and Gadwalls) that were found dead in a Denver-area treatment plant’s pool and in a nearby river. The cause of death was most likely hypothermia as the ducks had lost their waterproofing….