Khaki Campbell ducks seldom hatch out others' young; however, in very communal situations do hatch large broods together. Most brooding behavior has been sacrificed in exchange for prolific egg laying ability in this breed. The ducks, when raised by hand, are not usually defensive of their eggs or nests, making collection of eggs very easy. Mechanical incubators or broody chickens are used to hatch out Khaki Campbell ducklings when ducks are not present in the process. Incubation takes approximately 23 to 28 days for a Khaki Campbell duckling to hatch and eggs need to be inspected for ducklings that have not emerged
Khaki standard color for smart casual dress trousers for civilians, which are also often called "khakis". "Khaki" is a loanword from Hindustani (Urdu or Hindi) ख़ाकी/خاکی 'soil-colored', which in turn comes from Persian خاک "khâk" 'soil' + ی- (adjectival ending); it came into English via the British Indian Army. Khaki was first worn in the Corps of Guides that was raised in December 1846 by Henry Lawrence (1806–1857), resident at Lahore, and Agent to the Governor-General for the North-West Frontier. Initially the border troops were dressed in their native costume, which consisted of a smock and white pajama trousers made of