Comments: Feeds primarily on bivalve mollusks; principally clams. Also consumes many other benthic invertebrates. Generally eats fleshy portion of bivalve; rejects the shell. Some individuals may feed on fishes, birds, or other marine mammals. Feeds most commonly on bottom in shallow water (80 m or less) but apparently also can forage in deep water (200-500+ m) (Fay et al. 1984a, Reeves et al. 1992).