The Feitherans were once winged humanoids with brown, feather-like skin. They lived in seclusion in the mysterious region of Greenland known as Feithera. Anthropologist Fred Cantrell lived among the Feitherans for many years and was married to Osoro, daughter of the Feitheran leader Worla.
In recent years, the Feitherans have apparently lost the power of speech but not their intelligence. It has yet to be revealed how, but Black Adam was able to convince Northwind and the other Feitherans to join him and take over his ancestral homeland Kahndaq.