Here is a link to a story describing a die-off of waterfowl on Lake Michigan near Chicago, mostly Red-breasted Mergansers and White-winged Scoters, because of the unusually extensive ice coverage on the lake this winter. http://www.chicagotribune.com/news/local/breaking/chi-ice-on-lake-michigan-proving-fatal-to-waterfowl-20140312,0,133814.story Darrel Wilder Johnson City, TN