Subscribe | UPI Odd Newsletter Subscribe CHICAGO, April 10 (UPI) -- Droves of buzzing periodical cicadas that have been living underground for 17 years are preparing to make an appearance in the Chicago area. Brides and outdoor music lovers are being warned that the buzz could put a damper on outdoor activities beginning in late May, the Chicago Tribune reported Tuesday. Advertisement A University of Illinois extension horticulture educator says this year's hatch could total more than 133,000 cicadas per acre in northern Illinois. About a week after they emerge, the males will congregate and start singing to attract females. The loud trilling, which occurs mostly during the sunny part of the day, will last for two weeks until the males die. The Ravinia Festival in Highland Park, Ill., is moving some concerts indoors and postponing some June events until later in July. Brides who are too young to remember the racket from 1990 are being warned about the potential for noise. "I remember you could be standing next to somebody, and it'd be hard to hear; it's that loud," said Fredric Miller, a Morton Arboretum research associate.
