I think ALL of us in your scenario would say "I wish a MF'er would!" And then promptly blast that thing out of the sky. Video of that drone activity would be priceless if the operator tried to deny the occurrence. Still wouldn't stop me from trying to bring it down though. Jack with the livestock win stupid prizes. See you in court.What happens if a trespassing drone is chasing livestock on private property, and the livestock is in immediate danger?
Dialing 911 might be too late!
Finding the drone operator might be too late!
Livestock if frightened can cause harm or death to themselves unintentionally!