A bit of background to this mail cartoon. Public Works Dept had responsibility for health in city, starling murmuration resulted in autumn evening invasion of city, homeward bound workers were being "hit" and there was a daytime stench of soiled window ledges, a series of defensive measures were taken, sleeping birds were gassed, tapes of distressed birds were played, rubber snakes were put on window ledges, gelatinous paint used on roosting ledges, this upset RSPCA, bright lights in trees in city parks to attract birds from the city and finally electric fences were used fixed around windows, finally the birds were deterred. There were unsubstantiated reports that the birds moved to Rome!