Further back in time, a Northern Chi dynasty artist is said to have painted a pair of sparrows fighting that looked so real the Emperor Wen Hsuan once tried waving them away.
三人相視莞爾。時間再向前推。根據唐代畫史記載，北齊有位畫家劉殺鬼，曾在壁間畫上鬥雀。文宣帝初見，誤為真鳥，用手揮趕不去，才明白原來是畫。