There's always collateral damage in poisoning. If it would ONLY kill pigs & coyotes, ok. But it would kill much more. So I vote no even though coyotes killed a weeks old calf of my sister's night before last. Had a pack raising my hair unseen a hundred yards away at dusk today. Yes, I got the AR out but never saw one. Time to go calling & spotlighting- they're too brave. Best, Thomas.