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
History of Rouen prisons. But between 17 and 20 September the crowds forced the gates of the prisons and murdered the Protestants that they found inside. The town was attacked on several occasions by Henry IV of France, but it resisted, notably during the siege of December 1591 to May 1592, with the help of the Spanish army led by the Duke of Parma (see Siege of Rouen (1591)). The permanent Exchequer of Normandy, which had been installed in Rouen in 1499 by George of Amboise, was transformed into a regional administrative assembly by Francis I in 1515 and up to the time