Haydel Goverment Hunter Call - Government Hunter Cottontail PredatorDouble Reed with Coaxer Voice.A super gravely sound is created, while blowing into this call. When blowing on the opposite end you get a squeaker sound for close in calling. Hyper-ventilating death cries can be accomplished by blowing and sucking air from either end. Cottontail Predator CallDouble-Reed with Coaxer Call