Haydels Duck Blue Wing Teal. This duck call produces the screechy quacks of these Teal ducks. Employs a reed system and should not be confused with the Green Wing Teal which whistles. Specifications for Haydels BT85 Duck Blue Wing Teal: Manufacturer: Haydels Fabric/Material: Acrylic Species: Duck Package Contents: Haydels BT85 Duck Blue Wing Teal The Haydels BT85 Duck Blue Wing Teal is a quality addition to the Haydels lineup. For more great deals on Duck Calls by Haydels please browse our Haydels Hunting Gear page. Haydels BT85 Duck Blue Wing Teal