http://www.whybirdssing.com/
a review of his work:
"David Rothenberg
Thousand Mile Song: Whale Music in a Sea of Sound
(comes with CD)
Basic Books
I realize that a review for a book focusing on whale songs might seem a bit strange, maybe even out of place on a world music site. However, musician and author (of several books including "Why Birds Sing: A Journey Into the Mystery of Birdsong"), David Rothenberg brings us another dimension. And he brings up the concept that non-human creatures enjoy listening to and making music as much as humans. And for many readers such myself this seems like a manifestation of one of those wild childhood dreams.
Depending on your level of rationality, you could say that I and others who think along these lines are anthropomorphizing or you might just consider that creatures such as birds and whales have been singing since the beginning of time. I won’t start philosophizing because I am not that good at it. Instead, I encourage you to read Rothenberg’s thoroughly engaging books. He is good at philosophy and putting all the pieces together in a unique puzzle."
From:
http://worldmusiccentral.org/2008/11/15/a-whale-of-a-song-david-rothenberg-jams-with-orcas/