Canard Duclair. A breed of black duck with a white dewlap named after the town of Duclair in Normandy. It is a cross between a Rouen duck and either black or white breeds. Males weigh around 3 kg, females 2.5 kg and eggs 70 g and are blueish green.The standard was developed originally in 1923 but similar ducks are recognised in other European countries under different names.
