My husband and I are driving East from Yellowstone Park to Minneapolis in late June, 2009.  We are "birders" and like to explore nature sites along the way.  I have three marvelous books, purchased from the MN bookstore which outline many sites along the MN River, the MS River and then "Travelers Guide to Wildlife in MN", But, there's a problem.

We'll have just one day on the road between Sioux Falls and Minneapolis.  Does anyone know of just one, or maybe two places where we can walk and possibly see birds on the Southeastern part of the state?  We will be driving East on Rt 90 and then could go on Rt 60 up to the Twin Cities.  

Thank you!  MaryT