Knight & Hale Magnum Crow Call Shocks tight-beaked turkeys into giving up their location while calling in swarms of crows Creates deep, gravelly caws and raspy tones that compel gobblers and crows to answer, even on nonvocal days Enhanced, thicker call chamber generates ultra-clear sounds and thunderous volume Produces incredibly realistic, natural-sounding crow vocalizations that will trigger an immediate and enthusiastic response