Denver-Boulder Metro Area: Birds
This guide contains birds that can be found in the Denver-Boulder Metro Area, including Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson Counties.
Common Merganser
The common merganser (North American) or goosander (Eurasian) (Mergus merganser) is a large duck of rivers and lakes in forested areas of Europe, northern and central Asia, and North America.
Red-breasted Merganser
The red-breasted merganser (Mergus serrator) is a diving duck, one of the sawbills.
