Here's a documentary from PBS that mentions Magee Marsh in NW Ohio , a magical place I visited twice. Its possible there to get 30 species warblers in one day including the "holy grail" Kirtlands Warbler
the title is
Flight Path: The World of Migratory Birds ( it already aired on NYC PBS May 9th )
Enjoy the video on the link!
Flight Path: The World of Migratory Birds
