Preening Swan by Chris BooneThe preen gland, is an essential part of preening. This gland is found near the base of the tail and produces an oily substance that contains waxes that help waterproof feathers and keep them flexible. While preening, birds spread this oil to each feather so they are evenly coated and protected. Master Carver, Chris Boone began carving decoys at the age of twelve. His first carving tools were a gift from his parents who greatly influenced Chris to