Swallows build nests: Swallows build nests, which means "people are prosperous and happy".
Swallows like to build nests in other people's homes, but not all swallows do. Swallows will choose a kind family with beautiful and safe environment to nest and breed. Swallows nest at home, which is an auspicious sign. It symbolizes the kindness and auspiciousness of this family.
In many places in China, people welcome swallows to nest and breed indoors under the eaves. Old people often educate their children to love swallows, and are not allowed to beat swallows, tear down bird's nests or eat swallows. There is a saying that "swallows don't enter evil households" and "blind swallows". Through education from generation to generation, the good customs and habits of caring for and protecting swallows are gradually formed.
Swallows can not only catch pests, but also have many weather proverbs about swallows. For example, in North China and Northwest China: "Swallows fly low in the snake gallery, ants crow, and heavy rain is coming"; South China: "Swallows fly by water, it rains and the wind blows, swallows fly by water, and it rains not far away"; In Tibet, the high principle is: "Swifts come in a hurry for a long time, which indicates that the rain will stop and the sky will clear up" and so on.
The custom of loving birds conforms to the concept of "green, environmental protection and harmony between man and nature". We always believe that through the unremitting efforts of generation after generation, nature will be restored, and the vision of harmonious coexistence between man and nature will inevitably appear.