Book excerpt: Wild Track is an exploration of birdsong and the ways in which that sound was conveyed, described and responded to through text, prior to the advent of recording and broadcast technologies in the late 19th and early 20th centuries. Street links sound aesthetics, radio, natural history, and literature to explore how the brain and imagination translate sonic codes as well as the nature of the silent sound we "hear" when we read a text. This creates an awareness of sound through the tuned attention of the senses, learning from sound texts of the natural world that sought – and seek – to convey the intensity of the sonic moment and fleeting experience. To absorb these lessons is to enable a more highly interactive relationship with sound and listening, and to interpret the subtleties of audio as a means of expression and translation of the living world.