Evolution is the process of gradual, steady, progressive change or development. This is exactly the process we took in developing this call. When we set out on the quest of creating a new duck call, we spent countless hours in the field and sloughs all over North America researching the unique sounds that the mallard hen makes. We evolved the sounds we heard into our new duck call and the, “Evolution,” was born. The, “Evolution,” has an unmatched bottom end feed chuckle and quacks that are nothing short of revolutionary. This call sounds best tuned as a single reed, but we do offer it as a double.