Audubon Islands State Nature Preserve is comprised of Grape and Ewing islands. It was acquired by the Maumee Valley Audubon Society and donated to the Metropolitan Park District of the Toledo Area in the 1970s.
It was acquired and dedicated as a nature sanctuary managed for a variety of habitats that include prairie, floodplain forest and wetlands. The preserve provides great birding opportunities. This is the only riverine island community in the Ohio state nature preserve system.