Tsukuba`s Indefatiguable Bird-Chasers are Back Again! This Time in Force ! Come Watch ( and hear) Them in Action, as they help keep our groundscapes clean! » 100818_1814~01[1]

Recently, a new weapon has been added to the BIRD-CHASERS’ arsenal. Years of trial and error experimentation have shown that the plastic umbrella bags used for covering WET UMBRELLAS before entering the department store can create a highly disturbing sound. This is done by vigorously rubbing the two ends of the bag together, in the manner of washing socks or underwear by hand. The effect of the noise produced by this action on the human ear is not unlike that elicited by a hand slowly scratching a chalkboard