Learn the basics of How to Yelp, Cut, Cluck, Keekee, and Purr on a mouth call for turkey calling and hunting. In this instructional, howto mouth call video, 14x National Turkey Calling Champion Chris Parrish gives expert tips on the proper rhythm of the Keekee sound on a Diaphragm call. This is everything you need to know about calling turkeys using a mouth call. Learn these basic turkey calling fundamentals for better success during the spring and in calling competitions. These are the best turkey calls to learn to bag a gobbler.