Bill Saunders Refuge Series Mallard Duck Call - From flooded corn fields to the big open lakes and rivers, this easy blowing duck call has a nasty old hen sound and all the volume that will bring in the most cautious late season greenheads. Whether you are a novice or experienced caller this duck call will be sure to increase your success in the field. Durable Polycarbonate ConstructionCustom Reed DesignDouble O-RingHand Tuned and TestedUltra Realistic SoundAffordable QualityField ProvenEasy Blowing