We have a biological early alert system. Our male dachshund. If he starts circling the storage building or the grill and trailing things with his nose to the ground, I get the traps back out.
If Reuben catches it, it gets a biological, organic and holistic natural disposal. If I catch them with conventional snap traps they get flushed and turned into compost at the city sewer treatment plant.
Rats or mice are dispatched with great prejudice as the are truly destructive disease carrying vermin.
Bunnies, squirrels, possums, cats, water buffalo, velociraptors and polar bears are all vigorously chased from the back yard by Reuben, but allowed to escape unharmed as long as they don't return.