It was bred in the seventeenth century in Kōchi Prefecture, on Shikoku island in southern Japan, and was designated a Japanese National Natural Treasure in 1952.
[3] The Onagadori was bred in the seventeenth century in Tosa Province, the area that is now Kōchi Prefecture, on Shikoku island in the south-eastern part of the country.
[5]: 989 It is believed to have derived from other long-tailed Japanese breeds including the Shokoku, the Totenko and perhaps the Minohiki.
[5]: 989 Of the seventeen chicken breeds considered Japanese national treasures, it is the only one to have "special" status.
Japanese breeders through the centuries have gone to great pains in the creation and perpetuation of the breed, and provide special hutches with perches well above the ground, where the tails are kept clean and in good condition.