The Livestock Conservancy - The Buff duck has much to offer the breeder who is looking for an attractive, dual-purpose bird. It is a good layer, typically laying about 150-220 eggs per
List of duck breeds - Wikiwand
Orpington Duck - Open Poultry Standards Australia
List of duck breeds - Wikiwand
Orpington - British Waterfowl Association
Orpington Ducks| from the Domestic | Waterfowl | Club