Rouen duck breast. The female Rouen hens are a consistent shade of mahogany brown, with a brown crown and tan eye-stripes extending from bill to the back of the eyes. Another feature of the female color pattern is the distinct, detailed penciling found on feathers of the head, neck, body, body, most of the wing and tail. Rouen females can be much darker brown than Mallard females. Both sexes also have blue speculum feathers. However, Rouen speculum feathers are brighter in color and larger in size than that of the Mallard. Adult Rouen ducks are typically significantly larger than Mallard ducks. The
Rouen in the since destroyed "tour de lady Pucelle"); the "Church of Saint Ouen" (12th–15th century); the "Palais de Justice", which was once the seat of the "Parlement" (French court of law) of Normandy; the Gothic "Church of St Maclou" (15th century); and the Museum of Fine Arts and Ceramics which contains a splendid collection of faïence and porcelain for which Rouen was renowned during the 16th to 18th centuries. Rouen is also noted for its surviving half-timbered buildings. There are many museums in Rouen: the Musée des Beaux-Arts de Rouen, an art museum with pictures of well-known painters such as