Common merganser
The common merganser is a large seaduck of rivers and lakes in forested areas of Europe, Asia, and North America. Common Mergansers are the largest of the three merganser species in North America. Gulls often follow flocks as they forage. They wait for the ducks to come to the surface with fish, and then they try to steal their prey. Occasionally a Bald Eagle will attempt this. These large fish-eaters have serrated edges to their bills to help them grip their prey.
