Indian Runner duck the Pekin duck. As soon as the Indian Runners became fashionable, a demand for egg-layers and general purpose breeds developed. Using Runners crossed to Rouens, Aylesburys and Cayugas (the large black American breed), William Cook produced his famous Orpington Ducks. Mrs Campbell crossed her fawn-and-white Runner duck to a Rouen drake to create the Campbell ducks introduced in 1898. Later, she introduced wild mallard blood and managed to create the most prolific egg-layer, the Khaki Campbell (announced in 1901). Other breeds followed, some of which emerged as direct mutations of the Khaki Campbell, along with crosses back to Indian Runners,
Khaki drill from 1900 to 1949 and was most often used in desert and tropical service. A variant, still referred to a Khaki Drill or KDs, is worn by the British Armed Forces in noncombatant warm weather countries where the British are actively serving (e.g. personnel stationed at R.A.F. Akrotiri in Cyprus will wear any of four working variants of this uniform). Generally KD was a series of different uniform patterns of light khaki cloth, generally cotton, first worn by British and British Empire soldiers in the Boer War. Canada developed its own pattern after the First World War, and the uniform