Wild ducks are a type of waterfowl found in many parts of the world. The three most common species of wild duck are the MALLARD, TEAL, and Scaup. The MALLARD is the most widespread species of wild duck, with a distinctive green head and yellow bill. The TEAL is a small, dabbling duck with a blue-green head and white neck ring. The Scaup is a diving duck with a black head and white neck. All three species of wild duck are popular game birds and can be found in wetlands, lakes, and rivers.