What was the birdman cult on Easter Island?

The birdman cult was a religious and ceremonial practice on Easter Island that emerged during the middle period and persisted into the late period. The cult was centered at the village of Orongo, located atop the Rano Kao volcano, which featured stone houses constructed with vaulted roofs.1

The cult is primarily associated with the worship of a bird-god, and its influence is reflected in the island's rock art, which frequently depicts bird-headed men. Additionally, artisans created small wooden carvings of bird-headed human figures linked to this belief system. While the specific mechanics of the rites are often discussed in the context of island traditions, the cult represents a distinct cultural phase that followed the era of the famous moai statues.21