Cul De Canard (CDC)
Cul De Canard better known as CDC is used primarily for dry flies such as the F Fly and the Moustique. The actual translation of Cul de Canard is duck butt even though these feathers are from the back of a duck directly around the preen gland and not from the butt (that doesn't stop us from calling them duck butt feathers). The preen gland secrets an oil that the duck uses for cleaning and waterproofing. This makes these feathers very buoyant. It is very important to note that using gink or
1/31/2017Dun Magazine