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
Maritime, Fluvial and Harbour Museum of Rouen whale (on loan from the Natural History Museum of Rouen) is exhibited in the centre of the museum. It is a fin whale which was 7 years old when it died after grounding on a beach. A 38-metre barge, the "Pompon Rouge", is exhibited in the courtyard of the museum. Its hold has been transformed into an exhibition room about river navigation, including a model of a lock. In addition, there are regular temporary exhibitions on a variety of topics, such as the Rouen transporter bridge or the vikings. The museum is located in a former port building, Building 13,