http://wamuanimalhouse.org/shows/2010-0 ... y-big-year
Robert Michael Pyle author, Mariposa Road: The First Butterfly Big Year
Click "Listen" in the upper left to hear the interview.
"A few years ago, writer Robert Michael Pyle set out on a road trip with an unusual goal: to see as many North American butterflies as he could. His travels led to encounters with the Avalon Hairstreak, the Diana Fritillary, and other unusual butterflies. We’ll talk with Pyle about his butterfly "big year" and what he learned along the road."
If you haven't read any of his books, you are missing out. Great writer! I just got his book for my birthday.