Anas platyrhynchos

Also known as Wild Duck, Greenhead, Northern Mallard

Mallards are highly adaptable dabbling ducks easily recognized by the male's iridescent green head, bright yellow bill, and blue wing speculum. They feed by tipping forward into the water to reach aquatic vegetation and small invertebrates rather than diving. As the ancestor of almost all domestic duck breeds, these social birds thrive in both pristine wilderness wetlands and busy city park ponds.