Oklahoma State University gives about 3.6 kg (8 lb) drakes and 3.2 kg (7 lb) ducks. Wikipedia gives 4.1-5.4 kg for standard-bred (exhibition) birds without splitting by sex, and 2.7-3.6 kg for production strains; Metzer Farms lists 5-7.25 lb (about 2.3-3.3 kg).
A big, boat-shaped duck with a deep keel, coloured much like a wild mallard but larger and brighter. Drakes have a green head, white collar, claret breast and orange legs; ducks are rich mahogany brown with fine pencilled markings and a tan eye stripe. Both show a vivid blue wing patch.12
A calm, unhurried and gentle duck that takes life slowly. Rouens mature more slowly than many breeds and are content to potter about the garden.21
Daily activity how busy a day looks
Rouens rarely fly and are good foragers, so they enjoy daily time on grass looking for food, along with regular bathing water.23
Grooming and care the hands-on bits
Ducks keep their feathers in order themselves by preening and bathing, so the main job is supplying clean water: drinkers deep enough for a duck to dip its whole head, and a pool or tub for bathing. Keep bedding dry and change it often, and stop runs from turning into deep mud. As a heavy breed, they appreciate water deep enough to float in, which takes the weight off their legs.5
Home where they are happiest
A dry, well-ventilated and predator-proof house with roughly 0.4-0.55 m2 (4-6 sq ft) of floor per duck, plus a secure outdoor run with grass if possible. Sturdy fencing, fine hardware mesh, fencing sunk a little into the ground and overhead netting all help keep the flock safe.5
Food basics what goes in the bowl
A complete commercial waterfowl feed as the base, with leafy greens, other vegetables and the odd protein treat such as mealworms. Keep avocado, chocolate, onion, garlic, nightshade plants and mouldy food away from them, and always offer fresh water alongside food.5
Company who they like around
A flock bird that should live with at least two or three other ducks. If drakes are kept, about one drake to four or more ducks keeps the group settled.5
The story where it all began
The Rouen was developed from mallard-type ducks in northern France before the 1800s, where it was prized as a table bird. English breeders then selected it into the larger, deeper-bodied show duck known today; it reached the United States in 1850 and joined the first American standard in 1874.12
Fun facts for the dinner table
1
French breeders called it 'the perfect utility duck'.1
2
When it first reached England it was known by names such as Rhone, Rohan and Roan.1
3
France keeps a lighter-coloured cousin called the Rouen Clair alongside the darker Rouen Fonce.1
4
D. W. Lincoln of Massachusetts brought the first Rouens to the United States in 1850.1
Not veterinary advice. Check with your vet first if your pet has allergies, a health condition, is on a special diet or is pregnant. Treats should stay a small part of the daily food. Cut to a safe size and supervise. Terms of use
Owner questions the things everyone asks
How often should I feed my Rouen Duck?
Provide fresh commercial duck feed daily, following the label for amounts. Ducklings need a starter feed, adults a maintenance diet, and laying ducks extra calcium. Always have clean drinking water deep enough for bill submersion.67Pet Wiki plan
What does a Rouen Duck eat, and what should it never eat?
A complete commercial duck or waterfowl feed is the base, with treats like greens and supervised foraging. Never feed avocado, chocolate, caffeine, grapes, raisins, onion, garlic, or other toxic foods listed by the ASPCA. Always provide clean water.678
How much space does a Rouen Duck need?
They need a secure outdoor run with room to walk, dabble and forage. The exact space varies, so consult a good breeder or vet for specific dimensions. Ensure enough room for steady daily movement.67
What shelter or housing does a Rouen Duck need?
Provide a predator-proof ground-level shelter with deep dry bedding and low fencing. They need access to bathing water and a roomy run. Because they are heavy and poor fliers, ensure safe footing and reliable predator protection.67
How often should I clean a Rouen Duck's home?
Spot clean the coop daily and do a full clean every 30 days. Check for mites every two weeks. Also regularly inspect vent and feet for caked mud or droppings.67Pet Wiki plan
Can a Rouen Duck live with others?
Yes, Rouen ducks are social and thrive with other ducks. They are calm and mix well in mixed flocks. They are not lap pets but enjoy the company of their own kind.679
How long does a Rouen Duck live?
Rouen ducks typically live 8 to 12 years with good care.6710
Can I handle a Rouen Duck?
Yes, they are calm and easy to handle, especially with regular handling from an early age. They may become tame and follow you, but they prefer the company of other ducks and are not lap pets.6711
Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.