Bring them in and bring them down with the six-in-one waterfowl whistle. This versatile call grabs the attention of a wide variety of bird species and will keep any waterfowl or bird hunter plenty busy. A flexible body makes this whistle even more deadly. This designs gives you the power to control volume and tone to achieve more life-like sounds. You don't just have six calls in your back pocket, you have six realistic vocalization that are going to fill your freezer in no time at all.