reed duck call. The Yentzen and Sure-Shot Game Calls dominated commercial markets for the next 20 years and beyond. In 1972, Phil Robertson created his version of the famous Duck Commander Call. He started his Duck Commander Company in 1973. His product and name have become increasingly famous since his son, Willie Robertson, turned the company from a family business into a multimillion-dollar empire. Their name and product became even more famous after their show, Duck Dynasty, aired on March 21, 2012. In 1980, the rock band Genesis used duck calls, listed on the sleeve as 'duck', to trigger sounds on a Yamaha CS-80 polyphonic synthesiser when recording their album 'Duke'. In 2012, Kirk McCullough created his version of the "cutdown" call. This call has a threaded barrel and threaded insert for consistent sound. This design came from Kirk using Olts in the past and the hard rubber relaxing causing the caller to sometimes lose the insert when hunting. Kirk also included a centralizer to insure the reed was always seated in the same spot. The two most popular styles of duck calls are the Arkansas style and the Louisiana style. The style is determined by the shape of the tone board and the effect it has on the reed material. Technique There are many different schools of thought on what technique is best for imitating the sounds that ducks make; however, every duck call should be able to create four basic calls: the quack, the feed call, and the comeback or hail call. The quack is a short, sharp note that is the most used in waterfowl hunting. The feed is a sequence of rapid short notes of varying pitch that imitate ducks eating. The hail call or comeback call are the loudest and longest notes, typically used to attract the attention of far away ducks. Duck varieties The most prevalent and hunted duck in the United States, the mallard, makes the well known "quack" sound many associate with ducks. Other species make many different sounds, ranging from high-pitched whistles to very low, grunt-like quacks. There are calls for almost all species of ducks. Pintails, teal, wood ducks, gadwall, diving ducks and other ducks including the calls of both the male, or drake and the female, or hen. In many species, the call of the drake (male) is different from that of the hen (female). Mallard drakes make a