Tancho has only one red, round pattern on its head, and was named Tancho after the bird Tancho crane. The word "Tancho" generally means Tancho-kohaku and is popular because the red circle pattern on the white body is reminiscent of the Japanese flag. There are many varieties of Tancho, including Tancho-sanshoku, Tancho-showa, and Tancho-goshiki. If the head has a round pattern but the body has a pattern, it does not belong to the Tancho family and is called Maruten or Komaruten.
In Tancho, the red pattern should be close to a perfect circle and located in the center of the head. The size of the red pattern should be neither too large nor too small, but just enough to fit between the two eyes.

JAS No.2014 Tancho
Tancho has a circular scarlet imprint on its head. However, circular imprint may be imprints of a color other than scarlet.

Ginrin-tancho-kohaku has shine golden or silver scales, and has the appearance characteristics of Tancho-kohaku.

Tancho-sakura-ogon has a circular scarlet imprint on its head and has the appearance characteristics of Sakura-ogon.

Tancho-sanshoku has a circular scarlet imprint on its head and has the appearance characteristics of Taisho-sanshoku.

Tancho-showa has a circular scarlet imprint on its head and has the appearance characteristics of Showa-sanshoku.

Ginrin-tancho-showa has shine golden or silver scales, and has the appearance characteristics of Tancho-showa.

Doitsu-tancho-showa has almost no scales on the whole body and the skin is exposed, and has the appearance characteristics of Tancho-showa.

Tancho-kin-showa has shine golden or silver scales, and has the appearance characteristics of Kin-showa.

Tancho-goshiki has a circular scarlet imprint on its head and has the appearance characteristics of Goshiki.

Tancho-kujaku has a circular scarlet imprint on its head and has the appearance characteristics of Kujaku.

Doitsu-tancho-kujaku has almost no scales on the whole body and the skin is exposed, and has the appearance characteristics of Tancho-kujaku.

Tancho-ochiba has a circular scarlet imprint on its head and has the appearance characteristics of Ochiba-shigure. However, the circular imprint may be of a color other than scarlet.

Tancho-budo-goromo has a circular reddish brown imprint on its head. It has a black pattern of grape tufts throughout the imprint.