Why are there fewer magpies on July 7th? Scientific explanation.

In fact, it is the change of solar terms, temperature and humidity. Therefore, as a sensitive creature, magpies will fly to cliffs and caves in advance, so they are rarely seen.

Man-made destruction of the bird's nest and hunting have also aggravated the extinction of magpies. Professor Guo pointed out that when the magpie population is large, destroying the nest to hunt one or two magpies will not have much impact on the whole population, but when the population is already small, destroying the nest to hunt will also become one of the factors of population extinction.

On the seventh day of the seventh lunar month, it is said that cowherd and weaver girl meet. In order to help lovers cross the Milky Way, thousands of enthusiastic magpies built a magpie bridge in heaven. Magpie therefore becomes a mascot, and Magpie Bridge is a symbol of happy love.

The old people told the children that they couldn't see magpies around Tanabata and were busy bridging the gap between the cowherd and the weaver girl. But today's children can't see magpies not only on Qixi, but also at ordinary times.