Researchers at Arizona State University have discovered yet another way urbanization contributes to noise pollution. In this case it is not so much what is being added to the aural environment, but rather what is being taken away. A new study establishes a direct link between degrees of urbanization and the prevalence of parasites that tend to fatally affect finches. Beyond prevalence, the research shows that the loss of natural habitat within more urbanized areas also amplifies the severity of the gastrointestinal infections that afflict the songbirds. My poor Swomee-Swans…