Swallows are very lucky birds in the countryside. Unlike sparrows, they don't eat farmers' crops and their living habits are quiet. Therefore, whoever is in the rural swallow nest will think it is auspicious.
But because children are naughty, influenced by the children's song "Little Swallow, Dressed in Flowers", they are always curious about swallows, and then they always want to dig and poke their nests. Old people in rural areas think that their children have destroyed the "auspicious nest" and will definitely leave peace and auspiciousness at home, so they will not let the swallow nest be stabbed. Later, they left a folk proverb "Poke the bird's nest and be blind". ?
Swallows are migratory animals. Unlike other birds, they can catch insects in trees and on the ground, but they must catch insects in the air. It is said that a swallow catches more than 600,000 flying insects every year. So, in fact, there are fewer mosquitoes around where there are nests. This is the most scientific explanation that bird's nest can't sting.
In fact, the bird's nest can be poked, but in order to protect the young swallows, swallows should take down the bird's nest when they fly south.