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
Nicasius of Rouen Nicasius of Rouen Saint Nicasius of Rouen (; d. perhaps 260), often known as the Apostle of the Vexin, was a 3rd-century saint and martyr in Gaul. He is sometimes considered the first Bishop of Rouen, although probably incorrectly. Nicasius evangelized the Vexin, although he was apparently never in Rouen and despite tradition, was probably never bishop there. He spent a year at Mousseaux and evangelized Rolleboise nearby. He performed several miracles and evangelized numerous places along the Seine (among them Conflans, Andrésy, Triel, Vaux, Meulan, Mantes and La Roche-Guyon) but was martyred with his companions on the banks of