Detroit River and St. Clair Flats Restoration

Our Goals
Spearhead protection and restoration of the Detroit River and St. Clair Flats wetlands, home to the largest colony of threatened Black Terns in the Great Lakes region.
What We’re Doing
We work with partners to rebuild critical habitats, understand the most pressing threats to the region’s wetlands, and ensure the survival of vulnerable bird species like the Black Tern.
Black Tern perched on post.

Near the Detroit metropolitan area lie the Detroit River and St. Clair Flats, the world’s largest freshwater delta. These locations include wetlands that provide vital habitat for bird species such as the American Bittern, Black Tern, and Marsh Wren—but decades of urbanization and industrialization have destroyed up to 92% of Detroit's wetlands, endangering the region’s bird populations. Recognizing its ecological importance, ̽»¨¾«Ñ¡ scientists have identified this area as one of the 12 most critical coastal wetland regions in the Great Lakes for bird conservation. 

To combat habitat loss and species decline, ̽»¨¾«Ñ¡ and its partners are restoring these ecosystems, removing invasive plants, and studying bird populations. Staff and volunteers (including from our local chapter, the Detroit Bird Alliance) lead surveys to track breeding birds and overall marsh health, helping to measure the success of current projects and guide future efforts. 

One major focus of the project is the St. Clair Flats State Wildlife Area, which hosts Michigan’s largest Black Tern colony. The Black Tern population here has sharply declined due to habitat degradation, climate impacts, and invasive species. Through detailed field research, radio tracking, and habitat restoration, ̽»¨¾«Ñ¡ is working to reverse these declines and secure the long-term survival of Black Terns and other wetland-dependent birds, with support from regional and national partners and funding organizations. 

Partners in this region include Michigan DNR, Detroit Bird Alliance, Environment and Climate Change Canada, Common Coast Research and Conservation, Detroit Zoological Society, Upper Mississippi Great Lakes Joint Venture, University of Michigan, University of Redlands, and Indiana University. ̽»¨¾«Ñ¡â€™s work in the region is supported by the MI DNR Wildlife Habitat Grant Program, U.S. Fish and Wildlife Service, and the Upper Mississippi Great Lakes Joint Venture (UMGLJV).  

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