The good news is that if there are people out looking for the bounty...You know they are not going to sit very long, and you won't have to think about what sounds to use.. The Jack and cottontail are going to be a no-go. Coyotes will run at those sounds (away).
I looked into this as well.. It turns out that this was pushed by a Sheep Rancher from south of Salt Lake, who is in the legislature. He has a large ranch and the area of the state they are pushing for is around his ranch. Go figure. He apparently loss more than 10K in sheep last year. So now he uses his role in the state legislature to fix an issue he is having.