This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Uchek Langmeidong (Meitei mythology)
The story of Uchek Langmeitong is a Meitei folktale of Ancient Kangleipak (early Manipur). It is the story of a girl named "Hayainu" (alias Nongdam Atombi) who turned herself into a Langmeitong (Meitei for 'hornbill bird') as she was unable to suffer the ill treatments of her cruel stepmother.
In 2010, the folktale of Uchek Langmeidong was produced in the form of a comic book, in Meitei language (Manipuri language) in Latin script. It was authored by Subadani Ksh. In 2011, the folktale of Uchek Langmeidong was produced in the form of a comic book, with the name, Chekla Langmeitong. The folk story was reproduced into a play, "Uchek Langmeidong (The Chorus of the Birds)", by Ratan Thiyam, a drama director of Manipur.