Abstract: This invention is directed toward a series of devices designed to scare away Great Blue Herons, raccoons, and other common koi pond predators through a combination of a motion detection system which triggers an auditory and/or movement response from a variety of common enemies of koi pond predators and fanciful creatures intended to frighten koi predators. The invention teaches the combination of the motion detector with the koi predator enemy replica, such that a koi pond user can economically and efficiently protect his/her pond without adversely impacting the visual appeal of a koi pond.