The Khaki Campbell duck originated in England in 1901 by Adele Campbell. The Khaki Campbell duck breed is one of the most prolific egg layers of the duck breeds and if you like to use duck eggs in cooking, then this is the breed for you. They are an avid forager and are very active. They make a good farm or backyard duck. Khaki Campbell duck drakes have an upright posture and a green or bluish-green bill, greenish-bronze heads and backs, with the remainder of the plumage being a shade of khaki tan. Generally the Khaki Campbell duck hen will lay its first egg at 20 weeks of age. This duck breed was admitted into the American Standard of Perfection in 1941.