Wind power generation is expected to be a clean and environmentally friendly natural energy source, but a new kind of environmental problem has surfaced as infrasonic waves caused by windmills are suspected of causing health problems for some people. ...Wind power generation also poses a danger to birds, which are often struck and killed by the spinning vanes of the windmills. The Japanese Environment Ministry confirmed 13 such bird strikes in which white-tailed eagles, a rare species, were killed since fiscal 2003.

Abnormal noises could affect growth and feeding of the goats, officials say A large number of goats in Taiwan may have died of exhaustion because of noise from a wind farm. A farmer on an outlying island told the BBC he had lost more than 400 animals after eight giant wind turbines were installed close to his grazing land. ...Mr Kuo said the power company had offered to help him move but that there would be no compensation for the loss of his goats.

Late-night noise from spinning wind turbines on an outlying island of Taiwan may have killed 400 goats over the past three years by depriving them of sleep, an agricultural inspection official said on Thursday.

IKATA, Ehime Prefecture - Though wind turbines offer the exciting promise of a clean source of energy, they also create another form of pollution - noise. Residents here have complained that noise from newly installed wind turbines perched atop a ridge of the Sadamisaki Peninsula has been rattling their homes and plaguing them with sleepless nights.