Agdy is the Evenki term and personification for thunder. Ethnographers record that the single word agdy names at once the sound of the storm, an old man who is lord of the thunder, and the iron thunder-birds — described as no larger than black grouse, their bodies of iron and their eyes of fire — whose flight above the earth is heard as thunder and whose flashing eyes are the lightning. The thunder-ancestors were said to dwell in the lower world alongside the souls of shamans, and certain shamans were thought to be friends of the thunder, able to send the agdy to destroy a rival clan; Evenki oral tradition famously attributed the 1908 Tunguska explosion to a shaman dispatching the thunder against enemies. Agdy thus stands somewhat apart from the creator lineage, belonging instead to the storm-sky and to the intimate, dangerous compact between thunder and the shaman.