a closed reed call probably a rabbit squealer of some sort for about ten bucks or less at any good hunting supply store or walmart,it is very simple and cheap.If you are wanting to continue predator hunting you can advance to other calls later and spend a lot more money if you want,killed my first coyote years ago with a little johnny stewart closed reed call many years ago and still carry one during all hunting trips for other animal,and try to call in ole wiley coyote when nothing else is moving....