books.google.com - Many of us have experienced the interruption, pleasant or otherwise, of a bird singing from high in the trees or a lone chirper perched outside a bedroom window and wondered what the song was about. Following a world expert on birdsong from the woods of Martha's Vineyard to the tropical forests of Central...http://books.google.com/books/about/Birdsong.html?id=LiSFKZEnMg8C&utm_source=gb-gplus-shareBirdsong
