The mallard (/ˈmælɑːrd/ or /ˈmælərd/) or wild duck (Anas platyrhynchos) is a dabbling duck which breeds throughout the temperate and subtropical Americas, Europe, Asia, and North Africa, and has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Argentina, Chile, the Falkland Islands and South Africa. This duck belongs to the subfamily Anatinae of the waterfowl family Anatidae.
Description: male has a green head, yellow bill, yellow chest and gray body. Females are brown and black with an orange and black bill. 18 to 27 in head to tail
Found in park: Most often found in Cades Cove
Habitat: Marshes, wooded swamps, fields, and any fresh body of water.