“On Rapanui (Easter Island) people believed in a variety of god or 'atua' Most prominent among the 'atua' was the Creator God, Makemake, who was a 'birdman'. Makemake was born from a floating skull that was washed from a temple into the sea. He created the first humans. Together with his companion, the goddess Haua, he brought flocks of migratory seabirds to the island.
As well as the creator of mankind and Makemake was also regarded patron of the Bird Cult, the principal festival of Easter Island, and was worshipped in the form of sea birds, which were considered his incarnation. His material symbol, a man with a bird's head, can be found carved in hundreds of petroglyphs on Easter Island, human figures with the heads and tails of birds, into the rocks. He was the god of fertility and the chief god of the “Tangata manu” or bird-man cult (this cult succeeded the islands more famous Moai era, when the famous stone heads were carved).” (astrology.richardbrown.com)