Comments: Feeds mainly on animal food; eats crustaceans, fishes and their eggs, mollusks, and aquatic insects. Also eats a variety of aquatic plants (roots, leaves, buds, seeds). May dive very deep to obtain food (Bellrose 1976). Euphyllopods appear to be an especially important food source for ducklings. Individuals in summer molting flocks feed in nearshore waters on MYSIS, Onisimus, and bivalve mollusks (Johnson and Herter 1989).
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