1. There is a saying in The Book of Songs Nan Zhou Yang called "Raising Feathers", where "Feathers" refer to the wings of insects. In this ancient literary work, the beauty of special patterns on the wings of owls is described.
2. In Pan Lang's Homesickness of Birds, there is also the expression that "the number of feathers is over". "Homesick bird" refers to the legendary bird that will fly back to its hometown only when its wings are fully spread and realize its wish to go home. The number of "feathers" mentioned in it means that it has the conditions and elegant state to return to China.