#anasplatyrhynchos 

Perhaps the most familiar of all ducks, Mallards occur throughout North America and Eurasia. Mallards have long been hunted for the table, and almost all domestic ducks come from this species. 

Look for Mallards at local city or suburban parks. If you want to see them in a more natural setting, visit a nearby pond, lake or seaside.
Mallards are good fliers, migrating flocks of Mallards have been estimated traveling at 55 miles per hour.