According to one example embodiment, a predator repelling device is installed or placed in or near a water feature that has water-residing species that are vulnerable to predators. The device includes a base member for support and an extension arrangement coupled to and supported by the base member. The extension arrangement extends from the base member above and sufficiently close to the water for repelling predators. The extension arrangement includes an extension portion for providing access to a target location above the water and a motorized portion coupled to the extension portion for controlling the extension arrangement such as by repetitively and automatically sweeping the region surrounding the target location. Accordingly, when a predator attempts to breach the water feature the repetitive movement of the extension arrangement thwarts the predator's attempt and trains the predator to avoid the water feature.