Coon Creek whistles are cnc machined out of acrylic or wood and offer the perfect combination of sound and volume to truly replicate the whistles of Pintail, Wigeon, Teal, Mallard Drake and other whistling ducks. The acrylic whistles are capable of higher volume needed for field hunting while the wooden calls keep the tone qualities needed for flooded timber. With no moving internal parts, you can rest knowing that this whistle will work in any and every situation!