47 – Mark bill-to-face edge Published August 9, 2013 at 2587 × 2586 in Carving a Mallard Head – Tutorial ← Previous Next → 48. Mark the curved line between the bill and cheek. Note that the hinge (at the bottom of the bill) is aft of the process at the top of the bill. Carve this first with the tip of the knife the shave very carefully with the belly of the knife.