One morning, however, the son saw an old bird was feeding her big-mouthed-chirping-baby birds which were featherless he felt so much guilty that he repented of having made so many mistakes.

一天早上，儿子看见一只老雀给全身光秃秃张着大嘴卿卿嘈嘈要食的小鸟喂食的情景，深感内疚，下决心痛改前非。