Orcas may feed on prey as large as moose or smaller whales, but they do not make a regular part of their diet. Along with species listed orcas feed on squid, and seabirds.
Moose, Steller Sea Lion, Harbor Seal, Bearded Seal, Harbour Porpoise, Dall's Porpoise, North American River Otter, Sea Otters, Pacific Halibut, Pacific Cod, Chinook Salmon, Pink Salmon, Chum Salmon, Coho Salmon, Sockeye Salmon, Pacific Herring