In Japan they are called 'tengu komori', after the mythical creature called the Tengu.
Alternatively, he was said to have transformed into an Ootengu (greater tengu), whom, along with nurarihyon, the nine-tailed kitsune Tamamo-no-Mae and the oni Shuten-dōji, are often called the four greatest yōkai of Japan.
In 1864, Yorinori was ordered by the Shogunate to proceed to Mito, in order to deal with an uprising of the Tengu Party, whose members had proposed the policy with the motto of "Revere the emperor, expel the barbarians".
This branch of the Takeda clan were hereditary Aizu vassals, although Takeda Kouunsai was a well-known antibakufu activist involved with the Tengu-tou.