These ducks were developed for commercial flocks to lay more and larger eggs than the Khaki Campbell duck and have a calmer temperament with a higher fertility. The Gold Star Hybrids were developed by crossing and utilizing the attributes of different duck breeds. The coloring of these ducks may not be the same as pictured, but the males are shades of black and the females are shades of brown and can be sexed by color. They do not retain these characteristics in future generations.