This is one of the coolest pictures I've ever taken from a moving truck!
The ducks in these pictures aren't very remarkable, or rare. The ducks are domestic ducks raised for food. Domestic ducks are bred mostly from the anas platyrhynchos (common mallard). They are usually more common in southeast Asia, where duck is a more common cuisine. They need more space and yield less meat than chickens, which is why they aren't as popular in the west.
I'm not sure why these particular birds were hanging out in the middle of nowhere, but the recent suburban trend of raising farm animals for eggs, and milk, or just unique pets means there are plenty of strange things wandering around.
I like the colors here, and the monochrome pattern.