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.
Robert II (archbishop of Rouen) In a catalog of books in the Cathedral of Rouen created during the twelfth century, a reference was found to a particular book, the "Benedictionarius Roberti archiepiscopi", which was given to the church of Rouen by Archbishop Robert of Normandy. Since that time it became the property of the city of Rouen, where it is preserved (No. 27) as the "Benedictional of Æthelgar", possibly for the prayers it contained at the end for the coronation of the Anglo-Saxon kings and queens. Robert married Herlevea, and they had the following children: <br> Robert II (archbishop of Rouen) Robert II or "Robert