We searched to see if a growling device will deter rabbits from a garden, and we could not find anything. We used the two biggies - Google and Amazon. Evidently, someone is selling a device similar to the bird deterrent units that are available. These devices record predator sounds of certain birds and are motion activated to ward off birds.

Rabbits are smart and fast. We have a female Shitzu that thinks she is the great white hunter. She can be ferocious, for no bigger than a minute. A few weeks back, I heard her barking excitedly, so I investigated. She was in her fenced in area and a large rabbit was on the other side about 4 feet away munching on leaves undisturbed. That rabbit could have cared less.

The two solutions for your garden are a impenetrable fence or a motion activated sprinkler. You can always hook up the motion activated sprinklers in series for corner to corner protection. We'll keep researching the growling devices.