Lake Calumet (IBA)

Nineteenth-century accounts describe a Lake Calumet covered with waterfowl, which, upon rising, circled overhead, blotting out the sun. Such visions are today the stuff of history, but a few small sites still offer refuge to a surprisingly large variety of birds, of which 100 species nest. From year to year, all of these locations experience significant variations in water level and hence the birds that use them.