Is it winter or autumn to fly north and south?

Baidu Library inquired that the season of flying north and south is autumn. Wild goose, also known as wild goose, is a large migratory bird with migratory habits. As the climate changes, so will their place of residence. Flying from north to south means that the temperature in the north drops and winter is coming, so geese will fly to the south for the winter. In late autumn and early winter in our country, when late autumn and winter come, the temperature will drop greatly.

Autumn is one of the four seasons. Traditionally, China takes "beginning of autumn" in the 24 solar terms as the starting point of autumn. Entering autumn means that rainfall and humidity tend to decrease or decrease, and everything in nature begins to mature from lush. At present, the four seasons are usually divided according to the average temperature of modern scholar Zhang Baokun. The index is that the average temperature is below 10℃ in winter, above 22℃ in summer, and 10~22℃ in spring or autumn.