Why do geese fly south?

After autumn, the cold climate in the north is no longer suitable for geese to survive, and geese fly to the warm south in droves.

Every autumn and winter, they fly in droves from their hometown Siberia to the south of China for the winter. The following spring, after a long journey, they returned to Siberia to lay eggs and breed. The flying speed of geese is very fast, which can fly 68 ~ 90 kilometers per hour, and the long distance of thousands of kilometers is only one or two months.

During the long journey, these geese were well organized. They are usually arranged in herringbone or zigzag. When they fly, they keep making "honk, honk" calls. This cry of geese plays a signal role of caring for each other, calling, taking off and stopping.

The geese keep a strict and neat formation, that is, they are arranged in a "human" shape or a "one" shape. Because they fly all day, it is not enough to rely on the strength of a goose. They must help each other to fly fast and far.

Extended data

Classification of wild geese

1, black goose

Breeding in tundra of North America and Siberia; Overwintering in grasslands and estuaries on the southern coast.

2. Grey Goose

Northern Europe and Asia, wintering in North Africa, India, China and Southeast Asia.

3. Hongyan

It is distributed in Eurasia and northern Africa, including the whole of Europe, Africa north of the Tropic of Cancer, Arabian Peninsula and Asia-Hengduan Mountains-Minshan Mountains-Qinling Mountains-Huaihe River Basin north of Himalayas. It breeds in Mongolia, Northeast China and Siberia, and overwinters in central and eastern China, Taiwan Province Province and Korea.

4.white goose

Breeding in the tundra of the northern hemisphere; Wintering in temperate farmland.

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