Our vegetable and flower garden has been used repeatedly by cats as a toilet. We now have three Katzenschreck devices (two Frost Fire and PestBye) purchased and installed. The success with these devices is not exactly stunning. The cats visits and their legacies have declined, but still take place and the pile must be cleared away. The birds in our garden have been obviously very driven. We have four birdhouses in the garden. Falls in the winter in the feeding and in the spring, when the breeding season begins, appear no more songbirds, we need to mothball the equipment well. One recommendation I can not pronounce, unfortunately.