《太平广记·卷二百六十·嗤鄙三》
唐朝时，滑州灵昌县尉梁士会，是乌翎科中举后授的官，里正没有给他送来乌鸦羽翎，便在公文簿上写道：官叫做乌翎，是哪个里正，不送来乌翎？
唐滑州灵昌尉梁士会，官科乌翎，里正不送。举牒判曰：官唤乌翎，何物里正，不送乌翎。
During the Tang Dynasty, Liang Shihui, the county lieutenant of Lingchang County in Huazhou, was an official granted after passing the crow feather test. The Lizheng did not send him any feathers, so he wrote on the official document: The official is called Crow Feather, which Lizheng did not send Crow Feather?