Common Merganser (Mergus merganser)

A sturdy duck with a long orange bill, the Common Merganser is a devout pescatarian (many nowadays equate their diet with their religion). This male was floating about in a water feature in Prospect Park in April 2015 when I took this picture.

The glossy green head identifies him as a male. The lack of a "hood" or "red-breast" differentiates him from related merganser species.