Nope - these are American Coots. Coots are often mistaken for ducks, but they are actually members of the rail family and don't even have webbed feet.
One thing that distinguishes coots from ducks at first glance is their chicken-like, hard beak instead of a bill. This helps them grab plants and other food and tear it into pieces. Coots are mostly vegetarian, but are also known to eat some snails, insects, tadpoles, or crustaceans.