Step 15 (optional): For a cleaner look, erase as much as you can of the initial guide lines. Don't worry about erasing all of the guides. It's okay to leave some behind. Re-draw any final sketch lines that you may have accidentally erased.
Final Step (optional): Add some shading throughout your kiwi bird drawing for extra detail. As you add the value, separate each individual stroke a bit so that the white of the paper comes through and creates a coarse-looking texture. Vary the pressure on your pencil to get different degrees of tonal value. Don't worry about shading too smoothly. The rough value gives the feathers a coarse texture. Instead focus on adding the strokes in the basic direction that the feathers should go.
Make a small curved section on the right side of the body a lighter value to represent sheen on the kiwi's feathers. Adding the value can be very time- consuming, so be patient and take breaks. Continue shading until the entire body is covered in value. Make sure the separate each indivudual stroke for a coarse texture. Use a slightly darker value on the underside of the body to give the figure more dimension and volume. Use a slightly lighter value for the bird's beak and the feet. The top and right sides of the feet should be darker for the shadows.
Add a cast shadow underneath. This helps ground the kiwi bird so it doesn't appear to be floating. Use a darker value near the middle of the shadow and a lighter value along the edge for the shadow's diffusion.