The red-breasted merganser and common merganser are two species of diving ducks that are found in North America. Both species have long, thin bills with serrated edges that they use to catch fish. However, there are some key differences between the two species.
The red-breasted merganser is smaller than the common merganser, with a body length of 20-25 inches and a wingspan of 32-38 inches. The male red-breasted merganser has a black head and neck, with a white breast and belly. The female red-breasted merganser has a brown head and neck, with a white breast and belly. Both sexes have a red bill and feet.
