Totten Inlet, one of the most significant shorebird habitats in the inland marine waters of Washington, supports the largest estuarine flocks of shorebirds in south and central Puget Sound in fall, winter, and spring. Dominant species are Western Sandpiper and Dunlin. The open waters support relatively high populations of scaup, scoter, Common Goldeneye, Bufflehead, and Ruddy Duck. Although the Kennedy Creek estuary is relatively small, it ranks high in importance to shorebirds within the entire Puget Sound region. The high-quality salt marshes and mudflats contain an exceptional biomass of invertebrates, which provides essential foraging habitat for migratory and wintering birds.