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.
Romanus of Rouen exist - one is a Latin verse version of the 8th century, another is a prose life addressed to the archbishop of Rouen by the doyen of Saint-Médard de Soissons. Those two lives are held in the Bibliothèque municipale de Rouen, whilst another "Life" is held by the Bibliothèque nationale de France in Paris. Romanus of Rouen Saint Romanus of Rouen (; reconstructed Frankish: "*Hruomann"; died 640 AD) was a scribe, clerical sage, and bishop of Rouen. He would have lived under Dagobert I (629–39), though his date of birth is unknown. His life is known in legend and tradition