The U.S. portions of Lake St. Clair, a large freshwater lake replenished by the St. Mary's River and draining into the Detroit River.

Ornithological Summary

Concentration of 3 species, >10,000 Canvasabacks, 10,000 Redheads (Avg. no. for winters 1988, 92, 93)

Conservation Issues

Invasive species, excessive disturbance of birds, recreational development/overuse, housing and other development, pesticides (listed as pollution), pollution.


Mixed Ownership.


Open water.

Land Use

Industrial transport (barge shipping channel), commercial fishing, and recreational use including boating.