UPDATED: This post initially misidentified the above bird as a Bufflehead. Fortunately, followers of the blog include avid birders who care enough to help me get my facts straight.

Like the Wood Duck, the Hooded Merganser is closely associated with forested wetland habitats. In breeding season, this bird is especially common around the Great Lakes, although it is widespread in many other regions as well. Year-round populations occur in two ranges: The first, in the East, extends from Nova Scotia south and west to eastern Oklahoma and northern Louisiana. A second, smaller year-round range includes parts of coastal and southern British Columbia, Washington state, and patches in Oregon and western Montana. The Hooded Merganser is a short-distance migrant, moving south to avoid harsh weathers. The majority winter along the Mississippi Flyway in the south-central U.S.

I copied the description above from a birding site to ensure no further errors.