I would agree with many of the guys that said mouth calls,you can get them any where from wally world to gander and mountain orany sporting goods store and you dont have to sound like a professional caller to call in a coyote.Being in the right place and getting there undetected is far more important than the sounds you make,I have called them in with turkey calls.they are predators looking for an easy meal.A good rabbit in distress call will call one in if your setup is good and scentfree,the wind is right and you are in a place where there are coyotes and in a location where the coyote things it's safe to get an easy meal.Most of all make as many sets as possible,every time you blow your call in a new area your chances get better of scoring!!Good Luck!