Rabbit in Distress works well,Fawn Call,Rodent squeeking...the little Mouse Squeekers work well when a Coyote is closer...heck the light "Kissing" sound You can make with your lips will work too,they also come to most bird sounds or even a Turkey call.Go to a few Hunting Stores and see just how many different calls are out there....You'd be amazed at all the different types...one of the easiest but most expensive is to buy an Electronic Caller and a motion decoy and sit back and call them in...lots of fun and excitment in calling Predators.