A newly developed robotic device uses sound to lure feral felines and then poison them:
“The way that grooming traps operate is that they use laser sensors to detect different sized animals. We can distinguish animals the size of a cat from larger and smaller animals.
“When we have a cat-sized animal walking past them the grooming trap sprays a measured dose of toxin onto the fur.
“Cat’s are very fastidious groomers so they lick [the gel] off and walk away and die peacefully.”
“Toxin” = 1080; “peacefully” = not peacefully.