Duck calls are tools used by hunters to attract ducks. They come in a variety of shapes and sizes, and the two most common types are FORES (5 letters) and QUACKS (6 letters). FORES are typically made from wood and have a single reed, while QUACKS are usually made from plastic and have two reeds. Both types of duck calls produce a sound that mimics the quack of a duck, allowing hunters to attract ducks from a distance.