Rolling Thunder Game Call DC016CF: The Wood Duck Whistle is built to mimic the complete range of sounds and tones wood ducks produce, from attention-grabbing squeals to finishing whines. It features a durable, one-piece acrylic design with metal guts built to last a lifetime. The Wood Duck Whistle is constructed in the vintage Olt D-2 style, inspired by passion for all things cutdown, and is a great lanyard compliment to any of our mallard calls.