I'm fascinated by the relationships that people have with birds. Purple Martin landlords, folks that put up and maintain those Purple Martin houses across the country, have some of the most interesting experiences and relationships with their birds. A couple years back, I wrote a book about these birds and the people who care for them with Robin Doughty, my graduate work advisor at the University of Texas at Austin. Its a fun little book. See if your local library has a copy, or get one for yourself (and other copies for your friends!). You can read a review by Ro Wauer here.