Zheng Zhenduo wrote the prose "Swallows", but there are no other poems or proverbs describing swallows.

The description of the swallow in the article is "a body of shiny black feathers, a pair of handsome and brisk wings, and a scissor-like tail, forming a lively and clever little swallow."

Zheng Zhenduo, whose courtesy name is Xidi and whose pen names include Guo Yuanxin, Luoxue, and CT, was born in Wenzhou, Zhejiang, and originally from Changle, Fujian. An outstanding modern Chinese patriot and social activist, writer, poet, scholar, literary critic, literary historian, translator, art historian, and also a famous collector and exegete.