Rouen duck Rouen duckling is identical to the Mallard duckling in terms of plumage coloring. In North America, two distinct types are bred: the common, or production-bred, variety that is larger than a Mallard but has a typical duck conformation, and the much larger and squarer standard-bred variety. The production variety normally weighs 6–8 lbs (2.7–3.6 kg) while the standard-bred weighs 9–12 lb (4.1–5.4 kg). Rouen ducklings can be distinguished from wild mallard ducklings by the presence of a second stripe which runs across their face, just under their eye, whereas mallard ducklings have only one stripe which runs across their eye.
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