I just heard from University of Michigan ornithologist and coffee-drinker Julie Craves, who has developed an entire website devoted to shade-grown coffee. She delves into birds, farmer poverty, sustainability, industrial coffee and more.

"I don't profit from this web site or have any financial connection to coffee," she writes. "My horse in this race is my passion for both birds and coffee."

I found it fascinating.

And if you want to know more about Craves herself, just go to the University of Michigan website and do a search for Craves. You'll find all sorts of info about her work and her published articles.