CDC, or cul-de-canard, is the soft, fluffy material that comes from around the preening gland of a duck or goose. Despite its fluffy nature, CDC really does float pretty well, and a lot of folks use it when tying emergers and the like.
Above, Tim Flagler of Tightline Productions talks about the differences between standard CDC and CDC “puffs,” which are shorter denser feathers. I’m guessing, in a future post, he’ll talk about how to use each feather.
So, stay tuned.