Kagu name "Rhynochetos", and the clade name Rhynochetidae, are derived from the Greek "rhis" meaning nose and "chetos" meaning corn, referring to the corn-shaped flaps over the nostrils. The specific name "jubatus" is derived from the Latin "iabatus" meaning crested. The name kagu is derived from the Melanesian names for the species. The species is variously known as the "kavu" or "kagou" in the Kanak languages, and as the "cagou" in French (also used as an alternative spelling in English). The kagu is a ground-living bird, in length. The weight can vary considerably by individual and by season, ranging from .
Kagu-tsuchi of which is Atago Shrine, near Kyoto. Kagu-tsuchi , referred to as in the "Kojiki", and or in the "Nihon-Shoki", is the "kami" of fire in Japanese mythology. Kagu-tsuchi's birth burned his mother Izanami, causing her death. His father Izanagi, in his grief, beheaded Kagu-tsuchi with his sword, Ame no Ohabari (天之尾羽張), and cut his body into eight pieces, which became eight volcanoes. The blood that dripped off Izanagi's sword created a number of deities, including the sea god Watatsumi and rain god Kuraokami. Kagu-tsuchi's birth, in Japanese mythology, comes at the end of the creation of the world and