What does the Common Eider eat?

The Common Eider's diet shapes where and when you'll find it. Understanding what it eats helps you predict where to look.

Diet overview

Carnivore (primarily mollusks and crustaceans)

How it forages

Primarily a diving duck, feeding mainly on mollusks (especially mussels, clams, and periwinkles) and crustaceans (crabs, amphipods). They can dive to depths of 20 meters (65 feet) or more, using their powerful feet for propulsion. Food is swallowed whole, and shells are crushed in their muscular gizzard.

When it feeds

Diurnal, though they may feed at night during periods of low tide or high food availability.

Explore the Common Eider