Measuring 23 1/2" in length, with a 1" diameter sound chamber, this unsplit Coast Redwood (Sequoia sempervirens ) branch flute has a clear, soulful voice and is accurately tuned to a low Dmaj mode 2/5 pentatonic scale, playing 4 upper register tones.  Some of the rough bark has been left on, contrasting nicely with the finely finished sapwood and darker heartwood.  All knot holes and a few surface checks have been inlaid with crushed Malachite stone.   To aid against wet-out, the bird has been fitted with a redwood heartwood shoe, for its absorption qualities, and a drain hole has been designed into the air chamber.  Deer lacing with Malachite and brass beads holds the bird to the nest, while covering the drain hole.