Cul de canard Cul de canard Cul de canard (CDC) (French for "duck bottom") are the feathers from the back of a duck directly around the preen gland (uropygial gland); they are very buoyant due to preen oil produced by the preen gland. They are used when tying dry flies for fly fishing. They owe their buoyancy to their proximity to the ducks preen gland which secretes an oil distributed by the duck as a cleaning and waterproofing measure. It is unnecessary for the angler to add additional oil by way of floatant. Flies incorporating CDC are easy to dress requiring no floatant
Canard, Nova Scotia takes its name from the Canard River. Successive cultures have lived by the river and have named the settlement area by different but related names. Where Canard Street and Highway 358 intersect is known as jawbone corner, often called this by the local residents of the area. It got its names because back before the Wellington Dyke was completed in 1885, a large whale swam up the Canard river, and became stranded on the beach as the tide went out. The jaw bones of the big whale were then placed in the yard of the house that was on the