Mallard Duck (Anas platyrhynchos)
The Mallard duck lives in wetlands, eats water plants, and is gregarious. The Mallard is the ancestor of most domestic ducks. The breeding male is unmistakable, with a bright bottle-green head, black rear end and a yellowish orange (can also contain some red) bill tipped with black (as opposed to the black/orange bill in females). It has a white collar which demarcates the head from the purple-tinged brown breast, grey brown wings, and a pale grey belly. The dark tail has white borders.