If you are a nature geek like me and if you love Lake Superior like I do, there isn't a better story to hear than this one from Sparky Stensaas and Lake Superior Magazine.
It's an amazing combination of birdwatching and shipping, of citizen science and Lake Superior geography. From the discovery made by a Duluth remodeler and his elderly client to the pages of Audubon magazine. The crux of it is Captain J.P. "Perk" Perkins, an avid birdwatcher and ship captain who set up a miniature forest on the deck of his laker and monitored the birds that found refuge there as they crossed Lake Superior. Along the way, he discovers unknown migration flyways and rewrites Midwest ornithology.
Sparky is a great naturalist and photographer, with an ear for a great story. I had heard parts of this discovery in the past, and am so glad Sparky was able to put all the pieces together.