What do eider ducks eat?

Eider ducks are omnivores and have a varied diet that includes a wide range of food items, including:

- Marine invertebrates such as mussels, clams, cockles, periwinkles, barnacles, and sea urchins

- Small fish including sand eels, gobies, and herring

- Various crustaceans like crabs and shrimp

- Other small marine organisms such as polychaetes, amphipods, and isopods

- Occasionally, eider ducks may also eat terrestrial insects, berries, and plant matter when food sources in their marine environment are limited.