Small creatures, such as a butterfly or a bird, are made for their own expression on stage with props, and "Koken," or sometimes "Kuroko," (both an assistant to Kabuki actors, and the latter is dressed in black) move those creatures stuck to one end of a long bar.
蝶や鳥などを舞台上で表現する場合に、小道具で創り、後見（舞台上で補佐する役。黒衣のときもある）が長い棒にさして動かす。