Literature Reference: 乌巫互相利，不复两西东。日日营巢窟，稍稍近房栊。虽生八九子，谁辨其雌雄。群雏又成长，众觜逞残凶。探巢吞燕卵，入蔟啄蚕虫。岂无乘秋隼，羁绊委高墉。但食乌残肉，无施搏击功。亦有能言鹦，翅碧觜距红。暂曾说乌罪，囚闭在深笼。青青窗前柳，郁郁井上桐。贪乌占栖息，慈乌独不容。慈鸟尔奚为，来往何憧憧。晓去先晨鼓，暮归后昏钟。辛苦尘土间，飞啄禾黍丛。得食将哺母，饥肠不自充。主人憎慈乌，命子削弹弓。弦续会稽竹，丸铸荆山铜。慈乌求母食，飞下尔庭中。数粒未入口，一丸已中胸。仰天号一声，似欲诉苍穹。反哺日未足，非是惜微躬。谁能持此冤，一为问化工。胡然大觜乌，竟得天年终。—— 《和荅诗十首 和大觜乌》 The crow and the witch benefit each other, no longer separated east and west. Daily they build their nests, gradually nearing the house. Though they bear eight or nine offspring, who can discern their gender? As the fledglings grow, their beaks become fierce. They raid nests to swallow sparrow eggs, enter clusters to peck silkworms. Is there no autumn hawk, bound to the high wall? It feeds on crow's leftovers, without exerting its hunting prowess. There is also a talkative parrot, with green wings and a red beak. It briefly spoke of the crow's crimes, then was imprisoned in a deep cage. The green willows by the window, the lush well-side paulownia. The greedy crow occupies the perch, the kind crow is not tolerated. Why does the kind crow come and go so restlessly? It departs at the morning drum, returns after the evening bell. Toiling in the dust, pecking at the millet fields. It seeks food to feed its mother, yet its own hunger remains unfulfilled. The master despises the kind crow, orders his son to craft a slingshot. The string is made of Kuaiji bamboo, the pellet of Jingshan copper. The kind crow seeks food for its mother, flies into your courtyard. Before it can eat a few grains, a pellet strikes its chest. It cries out to the heavens, as if pleading with the vast sky. Its days of feeding its mother are not enough, not out of self-preservation. Who can uphold this injustice, and question the creator? How did the big-beaked crow, after all, reach a natural end? — From 'He Da Shi Shi Shou He Da Zi Wu'