Cajun Hen Duck Call. If you want a call that duplicates a mallard hen with a craw full of rice, corn or acorns, then look no further! It's here!... When a mallard hen has a craw full of food, the voice bow is compressed and the note comes out scratchyand nasally. To other ducks, this means dinner! Easy to blow! Great for timber and flooded rice fields... A taste of Louisiana...Our original little work horse of a duck call. Double reed, and does the Cajun squeal.