We end tonight on this Earth Day high in the Colorado Rockies, where out of boredom a man named Billy Barr started taking notes on the nature around him nearly forty-five years ago.

Summary

... , birds, mammals. JOHN BLACKSTONE: --and recorded it all by hand in a series of now-tattered notebooks. DAVID INOUYE: Those notebooks are-- are historic now. JOHN BLACKSTONE: In the early nineties, scientist David Inouye from the neighboring Rocky Mountain... ... Biological Laboratory, needed data for his research on wildflowers. He had heard about Billy`s notebooks, but was shocked when he saw how comprehensive they were. DAVID INOUYE: And I said, Billy, you know, those data are-- are reall