The bald eagle’s main diet is fish. Herring, flounder, pollock, and salmon are taken along the coast, while the Interior populations prey heavily upon salmon. Eagles also prey upon waterfowl, small mammals, sea urchins, clams, crabs, and carrion. Bald eagles are sometimes seen swimming, laboriously “rowing” with their wings. Eagles have thick down and float pretty well. It’s a common misconception that eagles cannot let go of their prey: the talons’ grasp is purely voluntary. An eagle will sometimes grab a fish that’s too heavy to lift and will chose to swim, towing the meal to shore, rather than lose it.