There is a pair of Common Eiders on Boat Meadow Creek in Eastham on Cape Cod. I’ve seen them recently from the bridge on Bridge Road.

The Common Eider is a large duck, from 23-27″ and usually lives along the coastline in all seasons. It feeds primarily underwater on mollusks by up-ending or swimming with only its head submerged.

It was pretty cool to see  these Common Eiders as I’ve only seen them a couple of times before. Look at the difference in coloring from the male to the female. Have you ever seen one?