red-breasted merganser Directory References Images Discover The World’s 5 Most Commonly Used Writing Systems How Did the Sperm Whale Get Its Name? Roman Catholic Saints 10 Great Sports Rivalries Timeline of the Space Race, 1957–69 How Deadly Is Quicksand? Nostradamus and His Prophecies Contents red-breasted merganser bird Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Mergus serrator, sheldrake Learn about this topic in these articles:description In merganserThe somewhat smaller and ground-nesting red-breasted merganser (M. serrator) has a similar range. In the United States, common and red-breasted mergansers are often called sheldrakes (properly a name for the shelducks).Read More