Maybe it is the sound Now you’ve got me tempted to want to try this around my chickens. But the fact the temperatures are in the 40s prevents me from doing so at the moment. LOL
That’s a good question. Are the shoes brightly colored maybe? It could be the sound. There’s no sound that never works my pigs. Not the sound of gunshots airhorns or any type of power tools except when they hear a chainsaw. They start running towards it and barking like they want to attack...