U.S. Fish & Wildlife Service logo A Unit of the National Wildlife Refuge System
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Michigan Islands
National Wildlife Refuge

common tern on nest

Lakes Michigan and Huron, MI   
E-mail: michiganislands@fws.gov
Phone Number: 906-586-9851, 989-777-5930
Visit the Refuge's Web Site:
Common terns nest on Michigan Islands Refuge.
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  Wildlife and Habitat

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Island habitats vary considerably, including cobblestone beaches, grasses and wildflowers above the high water line, shrub-covered sand dune areas, interior mixed hardwoods, balsam fir, and white cedar. Big Charity Island also has an 11-acre inland lake. Soils consist of shallow organics or sands over cherty limestone and dolomite.

The islands are used for nesting by American redstarts, herring and ring-billed gulls, double-crested cormorants, great blue herons, black-crowned night herons, and common and Caspian terns.

Thunder Bay Island is a rare, distinctive, alvar ecological community with a little bluestem alvar grassland, alvar pavement, and a limestone bedrock lakeshore.

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