Spring migration has several waves. Late April is a good time for overflight migrants, and we’re hoping we have the right timing with this little excursion. Nate Koszycki has led this successful field trip in years past. He considers Swan Creek Metropark his backyard. It was his go to park growing up, and it continues to be one of his favorite spots. Meet Nate at the Swan Creek Window on Wildlife (Airport Highway entrance) at 8 am.