30. =Cap= (_Pileus_). The whole top of head from the base of bill to
nape.
31. =Crown= (_Vertex_). The highest central portion of the top of
head (between the ears).
32. =Sinciput= (_Sinciput_). The anterior half of cap (from bill to
middle of crown).
33. =Occiput= (_Occiput_). The posterior half of cap, (from middle
of crown to the nape).
34. =Forehead= (_Frons_). From base of bill to crown (usually
anterior to line of eye).