The Gelede headdress often consists of two parts, a lower mask and an upper superstructure. The static expression and simplicity of this portion of the headdress contrasts with vitality and diversity of the superstructure. It's design is intended to placate the mothers by displaying their inner powers for all to see, thus pleasing them and ensuring the well-being of the community.
Birds signify the dangerous noctural powers of women who act as witches.
Snakes symbolize the positive feminine qualities of patience and coolness. The Goddess Home Page - dedicated to the Goddess in You. A lot of food for thought can be found on her site. Where there is a woman, there is magic. If there is a moon falling from her mouth, she is a woman who knows her magic, who can share or not share her powers.