Noises of Nature in the age of Briggs & Stratton--

"In the decades Krause has been recording biophony — he has compiled a library of more than 3,500 hours of pristine natural sound, which he thinks is the world’s largest private collection — nearly a third of the ecosystems he has captured have become aurally “extinct” because of habitat loss or the presence of noise-making machines. In this country, animals are continually forced to compete for bandwidth not only with one another but also with snowmobiles, off-road vehicles, Jet Skis and other loud motorized “toys”..."