Other geese deterrents do not permanently alter the environment for the geese. Geese are curious about and quickly grow accustomed to things like cutouts, string, or shiny tapes. However, our units are designed to alter the feel of the habitat such that the geese no longer feel secure and are motivated to leave. Other deterrents such as sprays wash away after one rain, require constant reapplication and runoff into the watershed. Our products are maintenance-free and environmentally friendly.